20
Mathematics SL guide 17 Syllabus Syllabus content Topic 1—Algebra 9 hours The aim of this topic is to introduce students to some basic algebraic concepts and applications. Content Further guidance Links 1.1 Arithmetic sequences and series; sum of finite arithmetic series; geometric sequences and series; sum of finite and infinite geometric series. Sigma notation. Technology may be used to generate and display sequences in several ways. Link to 2.6, exponential functions. Int: The chess legend (Sissa ibn Dahir). Int: Aryabhatta is sometimes considered the “father of algebra”. Compare with al-Khawarizmi. TOK: How did Gauss add up integers from 1 to 100? Discuss the idea of mathematical intuition as the basis for formal proof. TOK: Debate over the validity of the notion of “infinity”: finitists such as L. Kronecker consider that “a mathematical object does not exist unless it can be constructed from natural numbers in a finite number of steps”. TOK: What is Zeno’s dichotomy paradox? How far can mathematical facts be from intuition? Applications. Examples include compound interest and population growth.

IB Math SL Course Content - WordPress.com

  • Upload
    others

  • View
    5

  • Download
    0

Embed Size (px)

Citation preview

Page 1: IB Math SL Course Content - WordPress.com

Mathematics SL guide 17

Sylla

bu

s

Sylla

bu

s co

nte

nt

Top

ic 1

—A

lge

bra

9

ho

urs

T

he

aim

of

this

to

pic

is

to i

ntr

oduce

stu

den

ts t

o s

om

e bas

ic a

lgeb

raic

conce

pts

and a

ppli

cati

ons.

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

1.1

A

rith

met

ic s

equen

ces

and s

erie

s; s

um

of

finit

e

arit

hm

etic

ser

ies;

geo

met

ric

sequen

ces

and s

erie

s;

sum

of

finit

e an

d infi

nit

e geo

met

ric

seri

es.

Sig

ma

nota

tion.

Tec

hnolo

gy m

ay b

e use

d t

o g

ener

ate

and

dis

pla

y s

equen

ces

in s

ever

al w

ays.

Lin

k t

o 2

.6, ex

ponen

tial

funct

ions.

In

t: T

he

ches

s le

gen

d (

Sis

sa i

bn D

ahir

).

In

t: A

ryab

hat

ta i

s so

met

imes

consi

der

ed t

he

“fat

her

of

algeb

ra”.

Com

par

e w

ith

al-K

haw

ariz

mi.

TO

K:

How

did

Gau

ss a

dd u

p i

nte

ger

s fr

om

1 t

o 1

00?

Dis

cuss

the

idea

of

mat

hem

atic

al

intu

itio

n a

s th

e bas

is f

or

form

al p

roof.

TO

K:

Deb

ate

over

the

val

idit

y o

f th

e noti

on o

f

“infi

nit

y”:

fin

itis

ts s

uch

as

L. K

ronec

ker

consi

der

that

“a

mat

hem

atic

al o

bje

ct d

oes

not

exis

t unle

ss i

t ca

n b

e co

nst

ruct

ed f

rom

nat

ura

l

num

ber

s in

a f

init

e num

ber

of

step

s”.

TO

K:

What

is

Zen

o’s

dic

hoto

my p

arad

ox?

How

far

can

mat

hem

atic

al f

acts

be

from

intu

itio

n?

A

ppli

cati

ons.

E

xam

ple

s in

clude

com

pound i

nte

rest

and

po

pula

tion g

row

th.

Page 2: IB Math SL Course Content - WordPress.com

Mathematics SL guide18

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

1.2

E

lem

enta

ry t

reat

men

t o

f ex

po

nen

ts a

nd

logar

ith

ms.

Examples:

3 4

16

8;

16

3lo

g8

4;

log

32

5lo

g2

; 4

31

2(2

)2

.

Ap

pl:

Ch

emis

try 1

8.1

(C

alcu

lati

on

of

pH

).

TO

K:

Are

lo

gar

ith

ms

an i

nven

tio

n o

r

dis

cover

y?

(Th

is t

opic

is

an o

ppo

rtu

nit

y f

or

teac

her

s to

gen

erat

e re

flec

tio

n o

n “

the

nat

ure

of

mat

hem

atic

s”.)

L

aws

of

expo

nen

ts;

law

s of

logar

ith

ms.

Ch

ange

of

bas

e.

Examples:

4

ln7

log

ln4

7,

25

5 5

log

log

log

125

3125

25

2.

Lin

k t

o 2

.6, lo

gar

ith

mic

funct

ion

s.

1.3

T

he

bin

om

ial

theo

rem

:

expan

sio

n o

f (

),n

ab

n.

Co

un

tin

g p

rin

ciple

s m

ay b

e u

sed

in

th

e

dev

elo

pm

ent

of

the

theo

rem

.

Aim

8:

Pas

cal’

s tr

ian

gle

. A

ttri

buti

ng t

he

ori

gin

of

a m

ath

emat

ical

dis

cover

y t

o t

he

wro

ng

mat

hem

atic

ian

.

Int:

Th

e so

-cal

led

“P

asca

l’s

tria

ngle

” w

as

kn

ow

n i

n C

hin

a m

uch

ear

lier

th

an P

asca

l.

Cal

cula

tio

n o

f bin

om

ial

coef

fici

ents

usi

ng

Pas

cal’

s tr

ian

gle

an

dn r

.

n r s

ho

uld

be

fou

nd

usi

ng b

oth

th

e fo

rmu

la

and

tec

hn

olo

gy.

Example

: fi

ndin

g

6 r f

rom

in

pu

ttin

g

6n

ry

CX

an

d t

hen

rea

din

g c

oef

fici

ents

fro

m

the

table

.

Lin

k t

o 5

.8,

bin

om

ial

dis

trib

uti

on

. N

ot

req

uir

ed

:

form

al t

reat

men

t o

f per

mu

tati

on

s an

d f

orm

ula

for n

rP.

Page 3: IB Math SL Course Content - WordPress.com

Mathematics SL guide 19

Syllabus content

Top

ic 2

—Fu

nc

tio

ns

an

d e

qu

atio

ns

24

ho

urs

T

he

aim

s of

this

to

pic

are

to e

xplo

re t

he

noti

on o

f a

funct

ion a

s a

unif

yin

g t

hem

e in

mat

hem

atic

s, a

nd t

o a

pply

funct

ional

met

hods

to a

var

iety

of

mat

hem

atic

al s

ituat

ions.

It

is e

xpec

ted t

hat

exte

nsi

ve

use

wil

l be

mad

e of

tech

nolo

gy i

n b

oth

the

dev

elo

pm

ent

and t

he

appli

cati

on o

f th

is t

opic

, ra

ther

than

elab

ora

te a

nal

yti

cal

tech

niq

ues

. O

n e

xam

inat

ion p

aper

s, q

ues

tions

may

be

set

requir

ing t

he

gra

phin

g o

f fu

nct

ions

that

do n

ot

expli

citl

y a

ppea

r on t

he

syll

abus,

and s

tuden

ts m

ay n

eed t

o c

hoose

the

appro

pri

ate

vie

win

g w

indow

. F

or

those

funct

ions

expli

citl

y m

enti

oned

, ques

tions

may a

lso b

e se

t on

com

posi

tion o

f th

ese

funct

ions

wit

h t

he

linea

r fu

nct

ion yaxb

.

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

2.1

C

once

pt

of

funct

ion

:(

)fx

fx

.

Dom

ain, ra

nge;

im

age

(val

ue)

.

Example

: fo

r 2

xx

, dom

ain i

s 2

x,

range

is

0y

.

A g

raph i

s hel

pfu

l in

vis

ual

izin

g t

he

range.

Int:

The

dev

elo

pm

ent

of

funct

ions,

Ren

e

Des

cart

es (

Fra

nce

), G

ott

frie

d W

ilhel

m L

eibniz

(Ger

man

y)

and L

eonhar

d E

ule

r (S

wit

zerl

and).

Com

posi

te f

unct

ions.

(

)(

())

fgx

fgx

. T

OK

: Is

zer

o t

he

sam

e as

“noth

ing”?

TO

K:

Is m

athem

atic

s a

form

al l

anguag

e?

Iden

tity

funct

ion. In

ver

se f

unct

ion

1f

. 1

1(

)()

()(

)ff

xf

fx

x.

On e

xam

inat

ion p

aper

s, s

tuden

ts w

ill only

be

asked

to f

ind the

inver

se o

f a one-to-one

funct

ion.

Not

req

uir

ed

:

dom

ain r

estr

icti

on.

2.2

T

he

gra

ph o

f a

funct

ion;

its

equat

ion

()

yfx

.

Ap

pl:

Chem

istr

y 1

1.3

.1 (

sket

chin

g a

nd

inte

rpre

ting g

raphs)

; geo

gra

phic

skil

ls.

TO

K:

How

acc

ura

te i

s a

vis

ual

rep

rese

nta

tion

of

a m

athem

atic

al c

once

pt?

(L

imit

s of

gra

phs

in d

eliv

erin

g i

nfo

rmat

ion a

bout

funct

ions

and

phen

om

ena

in g

ener

al, re

levan

ce o

f m

odes

of

repre

senta

tion.)

Funct

ion g

raphin

g s

kil

ls.

Inves

tigat

ion o

f key

fea

ture

s of

gra

phs,

such

as

max

imu

m a

nd m

inim

um

valu

es, in

terc

epts

,

hori

zonta

l an

d v

erti

cal

asym

pto

tes,

sym

met

ry,

and c

onsi

der

atio

n o

f dom

ain a

nd r

ange.

Note

the

dif

fere

nce

in t

he

com

man

d t

erm

s

“dra

w”

and “

sket

ch”.

Use

of

tech

nolo

gy t

o g

raph a

var

iety

of

funct

ions,

incl

udin

g o

nes

not

spec

ific

ally

men

tioned

.

An a

nal

yti

c ap

pro

ach i

s al

so e

xpec

ted f

or

sim

ple

funct

ions,

incl

udin

g a

ll t

hose

lis

ted

under

to

pic

2.

The

gra

ph o

f 1(

)y

fx

as

the

refl

ecti

on i

n

the

line yx

of

the

gra

ph o

f (

)y

fx

.

Lin

k t

o 6

.3, lo

cal

max

imum

and m

inim

um

poin

ts.

Page 4: IB Math SL Course Content - WordPress.com

Mathematics SL guide20

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

2.3

T

ran

sfo

rmat

ion

s of

gra

ph

s.

Tec

hn

olo

gy s

ho

uld

be

use

d t

o i

nves

tigat

e th

ese

tran

sform

atio

ns.

Ap

pl:

Eco

no

mic

s 1

.1 (

shif

tin

g o

f su

pply

an

d

dem

and

cu

rves

).

Tra

nsl

atio

ns:

(

)y

fx

b;

()

yfxa

.

Ref

lect

ion

s (i

n b

oth

axes

):

()

yfx

;

()

yfx

.

Ver

tica

l st

retc

h w

ith

sca

le f

acto

r p:

()

ypfx

.

Str

etch

in

th

e x-

dir

ecti

on

wit

h s

cale

fac

tor

1 q:

yfqx

.

Tra

nsl

atio

n b

y t

he

vec

tor

3 2 d

eno

tes

ho

rizo

nta

l sh

ift

of

3 u

nit

s to

th

e ri

gh

t, a

nd

ver

tica

l sh

ift

of

2 d

ow

n.

Co

mpo

site

tra

nsf

orm

atio

ns.

Example

: 2

yx

use

d t

o o

bta

in

23

2y

x b

y

a st

retc

h o

f sc

ale

fact

or

3 i

n t

he y-

dir

ecti

on

foll

ow

ed b

y a

tra

nsl

atio

n o

f 0 2

.

2.4

T

he

qu

adra

tic

funct

ion

2

xax

bxc

: it

s

gra

ph

, y-

inte

rcep

t (0

,)c

. A

xis

of

sym

met

ry.

Th

e fo

rm

()(

)x

axpxq

,

x-in

terc

epts

(,

0)

p a

nd

(,

0)

q.

Th

e fo

rm

2(

)x

axh

k,

ver

tex (

,)

hk

.

Can

did

ates

are

expec

ted

to

be

able

to

chan

ge

fro

m o

ne

form

to

an

oth

er.

Lin

ks

to 2

.3,

tran

sform

atio

ns;

2.7

, q

uad

rati

c

equ

atio

ns.

Ap

pl:

Ch

emis

try 1

7.2

(eq

uil

ibri

um

law

).

Ap

pl:

Ph

ysi

cs 2

.1 (

kin

emat

ics)

.

Ap

pl:

Ph

ysi

cs 4

.2 (

sim

ple

har

mo

nic

mo

tio

n).

Ap

pl:

Ph

ysi

cs 9

.1 (

HL

only

) (p

roje

ctil

e

mo

tio

n).

Page 5: IB Math SL Course Content - WordPress.com

Mathematics SL guide 21

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

2.5

T

he

reci

pro

cal

fun

ctio

n

1x

x,

0x

: it

s

gra

ph

an

d s

elf-

inver

se n

ature

.

Th

e ra

tio

nal

fu

nct

ion

axb

xcx

d a

nd

its

gra

ph

.

Examples:

4

2(

),

32

3hx

xx

;

75

, 2

52

xy

xx

.

Ver

tica

l an

d h

ori

zon

tal

asym

pto

tes.

D

iagra

ms

sho

uld

in

clu

de

all

asym

pto

tes

and

inte

rcep

ts.

2.6

E

xpo

nen

tial

fu

nct

ion

s an

d t

hei

r gra

ph

s:

xx

a,

0a

, ex

x.

In

t: T

he

Bab

ylo

nia

n m

eth

od

of

mu

ltip

lica

tion

: 2

22

()

2

ab

ab

ab

. S

ulb

a S

utr

as i

n a

nci

ent

Ind

ia a

nd

th

e B

akh

shal

i M

anu

scri

pt

conta

ined

an a

lgeb

raic

form

ula

for

solv

ing q

uad

rati

c

equ

atio

ns.

Lo

gar

ith

mic

fu

nct

ions

and t

hei

r gra

ph

s:

loga

xx

, 0

x,

lnx

x,

0x

.

Rel

atio

nsh

ips

bet

wee

n t

hes

e fu

nct

ion

s:

lne

xxa

a;

log

x

aa

x;

logax

ax

, 0

x.

Lin

ks

to 1

.1,

geo

met

ric

sequ

ence

s; 1

.2,

law

s o

f

expo

nen

ts a

nd

lo

gar

ith

ms;

2.1

, in

ver

se

fun

ctio

ns;

2.2

, gra

phs

of

inver

ses;

an

d 6

.1,

lim

its.

Page 6: IB Math SL Course Content - WordPress.com

Mathematics SL guide22

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

2.7

S

olv

ing e

qu

atio

ns,

bo

th g

raph

ical

ly a

nd

anal

yti

call

y.

Use

of

tech

no

logy t

o s

olv

e a

var

iety

of

equ

atio

ns,

in

clu

din

g t

hose

wh

ere

ther

e is

no

appro

pri

ate

anal

yti

c ap

pro

ach

.

So

luti

ons

may

be

refe

rred

to

as

roo

ts o

f

equ

atio

ns

or

zero

s of

fun

ctio

ns.

Lin

ks

to 2

.2,

funct

ion

gra

ph

ing s

kil

ls;

and

2.3

2.6

, eq

uat

ion

s in

vo

lvin

g s

pec

ific

fu

nct

ion

s.

Examples:

4

56

0e

sin

,x

xx

x.

So

lvin

g

20

ax

bxc

, 0

a.

Th

e q

uad

rati

c fo

rmu

la.

Th

e d

iscr

imin

ant

24

bac

an

d t

he

nat

ure

of

the

roo

ts,

that

is,

tw

o d

isti

nct

rea

l ro

ots

, tw

o

equ

al r

eal

roots

, n

o r

eal

roots

.

Example

: F

ind

k g

iven

that

th

e eq

uat

ion

23

20

kxxk

has

tw

o e

qu

al r

eal

roo

ts.

So

lvin

g e

xpo

nen

tial

eq

uat

ion

s.

Examples:

1

210

x,

11

93

x

x.

Lin

k t

o 1

.2, ex

po

nen

ts a

nd

lo

gar

ith

ms.

2.8

A

ppli

cati

ons

of

gra

ph

ing s

kil

ls a

nd

solv

ing

equ

atio

ns

that

rel

ate

to r

eal-

life

sit

uat

ion

s.

Lin

k t

o 1

.1,

geo

met

ric

seri

es.

Ap

pl:

Co

mpo

un

d i

nte

rest

, gro

wth

an

d d

ecay

;

pro

ject

ile

mo

tio

n;

bra

kin

g d

ista

nce

; el

ectr

ical

circ

uit

s.

Ap

pl:

Ph

ysi

cs 7

.2.7

–7

.2.9

, 1

3.2

.5,

13

.2.6

,

13

.2.8

(ra

dio

acti

ve

dec

ay a

nd

hal

f-li

fe)

Page 7: IB Math SL Course Content - WordPress.com

Mathematics SL guide 23

Syllabus content

Top

ic 3

—C

irc

ula

r fu

nc

tio

ns

an

d t

rig

on

om

etr

y

16

ho

urs

T

he

aim

s o

f th

is t

opic

are

to

ex

plo

re t

he

circ

ula

r fu

nct

ion

s an

d t

o s

olv

e pro

ble

ms

usi

ng t

rigo

no

met

ry.

On

ex

amin

atio

n p

aper

s, r

adia

n m

easu

re s

ho

uld

be

assu

med

un

less

oth

erw

ise

ind

icat

ed.

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

3.1

T

he

circ

le:

rad

ian

mea

sure

of

angle

s; l

ength

of

an a

rc;

area

of

a se

ctor.

Rad

ian

mea

sure

may

be

expre

ssed

as

exac

t

mu

ltip

les

of

, o

r d

ecim

als.

In

t: S

eki

Tak

akaz

u c

alcu

lati

ng

to

ten

dec

imal

pla

ces.

In

t: H

ippar

chus,

Men

elau

s an

d P

tole

my.

In

t: W

hy a

re t

her

e 36

0 d

egre

es i

n a

co

mple

te

turn

? L

inks

to B

abylo

nia

n m

ath

emat

ics.

TO

K:

Whic

h i

s a

bet

ter

mea

sure

of

angle

:

rad

ian

or

deg

ree?

Wh

at a

re t

he

“bes

t” c

rite

ria

by w

hic

h t

o d

ecid

e?

TO

K:

Eu

clid

’s a

xio

ms

as t

he

bu

ildin

g b

lock

s

of

Eu

clid

ean

geo

met

ry.

Lin

k t

o n

on

-Eu

clid

ean

geo

met

ry.

3.2

D

efin

itio

n o

f co

s a

nd

sin

in

ter

ms

of

the

un

it c

ircl

e.

A

im 8

: W

ho

rea

lly i

nven

ted

“P

yth

ago

ras’

theo

rem

”?

In

t: T

he

firs

t w

ork

to

ref

er e

xpli

citl

y t

o t

he

sin

e as

a f

unct

ion

of

an a

ngle

is

the

Ary

abh

atiy

a of

Ary

abh

ata

(ca.

51

0).

TO

K:

Tri

go

no

met

ry w

as d

evel

oped

by

succ

essi

ve

civil

izat

ion

s an

d c

ult

ure

s. H

ow

is

mat

hem

atic

al k

no

wle

dge

con

sider

ed f

rom

a

soci

ocu

ltura

l per

spec

tive?

Def

init

ion

of

tan

as

sin

cos

. T

he

equat

ion

of

a st

raig

ht

lin

e th

rou

gh

th

e

ori

gin

is

tan

yx

.

Ex

act

val

ues

of

trig

on

om

etri

c ra

tio

s of

0,

,,

,6

43

2 a

nd

thei

r m

ult

iple

s.

Exa

mple

s:

sin

,co

s,

tan

21

03

24

32

.

Page 8: IB Math SL Course Content - WordPress.com

Mathematics SL guide24

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

3.3

T

he

Pyth

ago

rean

id

enti

ty

22

cos

sin

1.

Do

uble

an

gle

iden

titi

es f

or

sin

e an

d c

osi

ne.

Sim

ple

geo

met

rica

l d

iagra

ms

and

/or

tech

no

logy m

ay b

e u

sed

to

ill

ust

rate

th

e d

ou

ble

angle

form

ula

e (a

nd o

ther

tri

gono

met

ric

iden

titi

es).

Rel

atio

nsh

ip b

etw

een

tri

go

no

met

ric

rati

os.

Examples:

Giv

en s

in,

find

ing p

oss

ible

val

ues

of

tan

wit

ho

ut

fin

din

g

.

Giv

en

3co

s4

x,

and

x i

s ac

ute

, fi

nd

sin

2x

wit

ho

ut

fin

din

g x

.

3.4

T

he

circ

ula

r fu

nct

ions

sinx

, co

sx

an

d t

anx

:

thei

r d

om

ain

s an

d r

anges

; am

pli

tud

e, t

hei

r

per

iod

ic n

atu

re;

and

th

eir

gra

ph

s.

Appl:

Ph

ysi

cs 4

.2 (

sim

ple

har

mo

nic

mo

tio

n).

Co

mpo

site

fun

ctio

ns

of

the

form

()

sin

()

fx

abxc

d.

Examples:

()

tan

4fx

x,

()

2co

s3

(4)

1fx

x.

Tra

nsf

orm

atio

ns.

Example

: si

ny

x u

sed

to

obta

in

3si

n2

yx

by a

str

etch

of

scal

e fa

cto

r 3

in

th

e y-

dir

ecti

on

and

a s

tret

ch o

f sc

ale

fact

or

1 2 i

n t

he

x-d

irec

tio

n.

Lin

k t

o 2

.3, tr

ansf

orm

atio

n o

f gra

ph

s.

Ap

pli

cati

ons.

E

xam

ple

s in

clu

de

hei

gh

t o

f ti

de,

mo

tio

n o

f a

Fer

ris

wh

eel.

Page 9: IB Math SL Course Content - WordPress.com

Mathematics SL guide 25

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

3.5

S

olv

ing t

rigo

no

met

ric

equ

atio

ns

in a

fin

ite

inte

rval

, both

gra

ph

ical

ly a

nd

an

alyti

call

y.

Exa

mple

s: 2

sin

1x

, 0

2x

,

2si

n2

3co

sx

x,

oo

0180

x,

2ta

n3

(4)

1x

, x

.

E

qu

atio

ns

lead

ing t

o q

uad

rati

c eq

uat

ion

s in

sin

,co

so

rta

nx

xx

.

No

t req

uir

ed

:

the

gen

eral

so

luti

on

of

trig

on

om

etri

c eq

uat

ion

s.

Exa

mple

s:

22

sin

5co

s1

0x

x f

or

04

x,

2si

nco

s2

xx

, x

.

3.6

S

olu

tio

n o

f tr

ian

gle

s.

Pyth

ago

ras’

th

eore

m i

s a

spec

ial

case

of

the

cosi

ne

rule

.

Aim

8:

Att

ribu

tin

g t

he

ori

gin

of

a

mat

hem

atic

al d

isco

ver

y t

o t

he

wro

ng

mat

hem

atic

ian

.

Int:

Cosi

ne

rule

: A

l-K

ashi

and

Pyth

ago

ras.

T

he

cosi

ne

rule

.

Th

e si

ne

rule

, in

clu

din

g t

he

ambig

uo

us

case

.

Are

a of

a tr

ian

gle

, 1

sin

2a

bC

.

Lin

k w

ith

4.2

, sc

alar

pro

duct

, n

oti

ng t

hat

: 2

22

2cab

ca

bab

.

Ap

pli

cati

ons.

E

xam

ple

s in

clu

de

nav

igat

ion

, pro

ble

ms

in t

wo

and

thre

e d

imen

sion

s, i

ncl

ud

ing a

ngle

s of

elev

atio

n a

nd

dep

ress

ion

.

TO

K:

No

n-E

ucl

idea

n g

eom

etry

: an

gle

su

m o

n

a glo

be

gre

ater

th

an 1

80

°.

Page 10: IB Math SL Course Content - WordPress.com

Mathematics SL guide26

Syllabus content

Top

ic 4

—V

ec

tors

1

6 h

ou

rs

The

aim

of

this

topic

is

to p

rovid

e an

ele

men

tary

intr

oduct

ion t

o v

ecto

rs,

incl

udin

g b

oth

alg

ebra

ic a

nd g

eom

etri

c ap

pro

aches

. T

he

use

of

dynam

ic g

eom

etry

soft

war

e is

extr

emel

y h

elpfu

l to

vis

ual

ize

situ

atio

ns

in t

hre

e dim

ensi

ons.

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

4.1

V

ecto

rs a

s dis

pla

cem

ents

in t

he

pla

ne

and i

n

thre

e dim

ensi

ons.

Lin

k t

o t

hre

e-dim

ensi

onal

geo

met

ry, x,

y a

nd z

-

axes

.

Appl:

Physi

cs 1

.3.2

(vec

tor

sum

s an

d

dif

fere

nce

s) P

hysi

cs 2

.2.2

, 2.2

.3 (

vec

tor

resu

ltan

ts).

TOK:

How

do w

e re

late

a t

heo

ry t

o t

he

auth

or?

Who d

evel

oped

vec

tor

anal

ysi

s:

JW G

ibbs

or

O H

eavis

ide?

Com

ponen

ts o

f a

vec

tor;

colu

mn

repre

senta

tion;

1 21

23

3v vv

vv

v

vi

jk

.

Com

ponen

ts a

re w

ith r

espec

t to

the

unit

vec

tors

i, j

and k

(st

andar

d b

asis

).

Alg

ebra

ic a

nd g

eom

etri

c ap

pro

aches

to t

he

foll

ow

ing:

Appli

cati

ons

to s

imple

geo

met

ric

figure

s ar

e

esse

nti

al.

th

e su

m a

nd d

iffe

rence

of

two v

ecto

rs;

the

zero

vec

tor,

the

vec

tor v

;

The

dif

fere

nce

of v

and

w i

s

()

vw

vw

. V

ecto

r su

ms

and d

iffe

rence

s

can b

e re

pre

sente

d b

y t

he

dia

gonal

s of

a

par

alle

logra

m.

m

ult

ipli

cati

on b

y a

sca

lar,

kv

; par

alle

l

vec

tors

;

Mult

ipli

cati

on b

y a

sca

lar

can b

e il

lust

rate

d b

y

enla

rgem

ent.

m

agnit

ude

of

a vec

tor,

v

;

unit

vec

tors

; bas

e vec

tors

; i,

j a

nd k

;

posi

tion v

ecto

rs O

Aa

;

A

BO

BO

Aba

. D

ista

nce

bet

wee

n p

oin

ts A

and B

is

the

magnit

ude

of

AB

.

Page 11: IB Math SL Course Content - WordPress.com

Mathematics SL guide 27

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

4.2

T

he

scal

ar p

rod

uct

of

two

vec

tors

. T

he

scal

ar p

rod

uct

is

also

kn

ow

n a

s th

e “d

ot

pro

du

ct”.

Lin

k t

o 3

.6, co

sin

e ru

le.

Per

pen

dic

ula

r vec

tors

; par

alle

l vec

tors

. F

or

no

n-z

ero

vec

tors

, 0

vw

is

equ

ival

ent

to

the

vec

tors

bei

ng p

erpen

dic

ula

r.

Fo

r par

alle

l vec

tors

, k

wv

, vw

vw

.

Th

e an

gle

bet

wee

n t

wo

vec

tors

.

4.3

V

ecto

r eq

uat

ion

of

a li

ne

in t

wo

an

d t

hre

e

dim

ensi

on

s:

tra

b.

Rel

evan

ce o

f a

(po

siti

on)

and

b (

dir

ecti

on

).

Inte

rpre

tati

on

of t a

s ti

me

and

b a

s vel

oci

ty,

wit

h b

rep

rese

nti

ng s

pee

d.

Aim

8:

Vec

tor

theo

ry i

s use

d f

or

trac

kin

g

dis

pla

cem

ent

of

obje

cts,

incl

ud

ing f

or

pea

cefu

l

and

har

mfu

l pu

rpo

ses.

TO

K:

Are

alg

ebra

an

d g

eom

etry

tw

o s

epar

ate

do

mai

ns

of

kn

ow

led

ge?

(V

ecto

r al

geb

ra i

s a

go

od

op

po

rtu

nit

y t

o d

iscu

ss h

ow

geo

met

rica

l

pro

per

ties

are

des

crib

ed a

nd

gen

eral

ized

by

algeb

raic

met

ho

ds.

)

Th

e an

gle

bet

wee

n t

wo

lin

es.

4.4

D

isti

ngu

ishin

g b

etw

een

coin

cid

ent

and

par

alle

l

lines

.

Fin

din

g t

he

poin

t o

f in

ters

ecti

on

of

two

lin

es.

Det

erm

inin

g w

het

her

tw

o l

ines

in

ters

ect.

Page 12: IB Math SL Course Content - WordPress.com

Mathematics SL guide28

Syllabus content

Top

ic 5

—Sta

tist

ics

an

d p

rob

ab

ility

3

5 h

ou

rs

Th

e ai

m o

f th

is t

opic

is

to i

ntr

odu

ce b

asic

co

nce

pts

. It

is

expec

ted

that

mo

st o

f th

e ca

lcu

lati

on

s re

quir

ed w

ill

be

do

ne

usi

ng t

ech

nolo

gy,

bu

t ex

pla

nat

ion

s of

calc

ula

tio

ns

by h

and

may

en

han

ce u

nd

erst

andin

g.

Th

e em

ph

asis

is

on

un

der

stan

din

g a

nd

in

terp

reti

ng t

he

resu

lts

obta

ined

, in

con

tex

t. S

tati

stic

al t

able

s w

ill

no

lon

ger

be

allo

wed

in

ex

amin

atio

ns.

Wh

ile

man

y o

f th

e ca

lcu

lati

on

s re

quir

ed i

n e

xam

inat

ions

are

esti

mat

es,

it i

s li

kel

y t

hat

th

e co

mm

and

ter

ms

“wri

te d

ow

n”,

“fin

d”

and

“ca

lcu

late

” w

ill

be

use

d.

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

5.1

C

on

cepts

of

po

pula

tio

n,

sam

ple

, ra

nd

om

sam

ple

, d

iscr

ete

and

co

nti

nu

ou

s d

ata.

Pre

senta

tion o

f dat

a: f

requen

cy d

istr

ibuti

ons

(tab

les)

; fr

equen

cy h

isto

gra

ms

wit

h e

qual

cla

ss

inte

rval

s;

Co

nti

nu

ou

s an

d d

iscr

ete

dat

a.

Ap

pl:

Psy

cholo

gy:

des

crip

tive

stat

isti

cs,

ran

do

m s

ample

(var

iou

s pla

ces

in t

he

gu

ide)

.

Aim

8:

Mis

lead

ing s

tati

stic

s.

Int:

Th

e S

t P

eter

sbu

rg p

arad

ox

, C

heb

ych

ev,

Pav

lovsk

y.

bo

x-a

nd

-wh

isker

plo

ts;

ou

tlie

rs.

Ou

tlie

r is

def

ined

as

mo

re t

han

1.5

IQR

fro

m

the

nea

rest

qu

arti

le.

Tec

hn

olo

gy m

ay b

e u

sed

to p

rod

uce

his

togra

ms

and

bo

x-a

nd-w

his

ker

plo

ts.

Gro

uped

dat

a: u

se o

f m

id-i

nte

rval

val

ues

for

calc

ula

tio

ns;

inte

rval

wid

th;

up

per

an

d l

ow

er

inte

rval

bou

nd

arie

s; m

od

al c

lass

.

No

t req

uir

ed

:

freq

uen

cy d

ensi

ty h

isto

gra

ms.

Page 13: IB Math SL Course Content - WordPress.com

Mathematics SL guide 29

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

5.2

S

tati

stic

al m

easu

res

and t

hei

r in

terp

reta

tions.

Cen

tral

ten

den

cy:

mea

n, m

edia

n, m

ode.

Quar

tile

s, p

erce

nti

les.

On e

xam

inat

ion p

aper

s, d

ata

wil

l be

trea

ted a

s

the

popula

tion.

Cal

cula

tion o

f m

ean u

sing f

orm

ula

and

tech

nolo

gy. S

tuden

ts s

hould

use

mid

-inte

rval

val

ues

to e

stim

ate

the

mea

n o

f gro

uped

dat

a.

Ap

pl:

Psy

cholo

gy:

des

crip

tive

stat

isti

cs

(var

ious

pla

ces

in t

he

guid

e).

Ap

pl:

Sta

tist

ical

cal

cula

tions

to s

how

pat

tern

s

and c

han

ges

; geo

gra

phic

skil

ls;

stat

isti

cal

gra

phs.

Ap

pl:

Bio

logy 1

.1.2

(ca

lcula

ting m

ean a

nd

stan

dar

d d

evia

tion )

; B

iolo

gy 1

.1.4

(co

mpar

ing

mea

ns

and s

pre

ads

bet

wee

n t

wo o

r m

ore

sam

ple

s).

Int:

Dis

cuss

ion o

f th

e dif

fere

nt

form

ula

e fo

r

var

iance

.

TO

K:

Do d

iffe

rent

mea

sure

s of

centr

al

tenden

cy e

xpre

ss d

iffe

rent

pro

per

ties

of

the

dat

a? A

re t

hes

e m

easu

res

inven

ted o

r

dis

cover

ed?

Could

mat

hem

atic

s m

ake

alte

rnat

ive,

equal

ly t

rue,

form

ula

e? W

hat

does

this

tel

l us

about

mat

hem

atic

al t

ruth

s?

TO

K:

How

eas

y i

s it

to l

ie w

ith s

tati

stic

s?

Dis

per

sion:

range,

inte

rquar

tile

ran

ge,

var

iance

, st

andar

d d

evia

tion.

Eff

ect

of

const

ant

chan

ges

to t

he

ori

gin

al d

ata.

Cal

cula

tion o

f st

andar

d d

evia

tion/v

aria

nce

usi

ng o

nly

tec

hnolo

gy.

Lin

k t

o 2

.3, tr

ansf

orm

atio

ns.

Examples:

If 5

is

subtr

acte

d f

rom

all

the

dat

a it

ems,

then

the

mea

n i

s dec

reas

ed b

y 5

, but

the

stan

dar

d

dev

iati

on i

s unch

anged

.

If a

ll t

he

dat

a it

ems

are

double

d, th

e m

edia

n i

s

dou

ble

d,

but

the

var

iance

is

incr

ease

d b

y a

fact

or

of

4.

Appli

cati

ons.

5.3

C

um

ula

tive

freq

uen

cy;

cum

ula

tive

freq

uen

cy

gra

phs;

use

to f

ind m

edia

n, quar

tile

s,

per

centi

les.

Val

ues

of

the

med

ian a

nd q

uar

tile

s pro

duce

d

by t

echnolo

gy m

ay b

e dif

fere

nt

from

those

obta

ined

fro

m a

cum

ula

tive

freq

uen

cy g

raph.

Page 14: IB Math SL Course Content - WordPress.com

Mathematics SL guide30

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

5.4

L

inea

r co

rrel

atio

n o

f biv

aria

te d

ata.

In

dep

end

ent

var

iable

x, d

epen

den

t var

iable

y.

Ap

pl:

Ch

emis

try 1

1.3

.3 (

curv

es o

f bes

t fi

t).

Ap

pl:

Geo

gra

ph

y (

geo

gra

ph

ic s

kil

ls).

Mea

sure

s o

f co

rrel

atio

n;

geo

gra

ph

ic s

kil

ls.

Ap

pl:

Bio

logy 1

.1.6

(co

rrel

atio

n d

oes

not

imply

cau

sati

on).

TO

K:

Can

we

pre

dic

t th

e val

ue

of

x fr

om

y,

usi

ng t

his

eq

uat

ion?

TO

K:

Can

all

dat

a be

mo

del

led

by a

(kn

ow

n)

mat

hem

atic

al f

un

ctio

n?

Con

sid

er t

he

reli

abil

ity

and

val

idit

y o

f m

ath

emat

ical

mo

del

s in

des

crib

ing r

eal-

life

ph

eno

men

a.

Pea

rso

n’s

pro

du

ct–

mo

men

t co

rrel

atio

n

coef

fici

ent

r.

Tec

hn

olo

gy s

ho

uld

be

use

d t

o c

alcu

late

r.

Ho

wev

er,

han

d c

alcu

lati

on

s o

f r

may

en

han

ce

un

der

stan

din

g.

Po

siti

ve,

zer

o,

neg

ativ

e; s

tro

ng,

wea

k,

no

corr

elat

ion

.

Sca

tter

dia

gra

ms;

lin

es o

f bes

t fi

t.

Th

e li

ne

of

bes

t fi

t pas

ses

thro

ugh

th

e m

ean

po

int.

Eq

uat

ion

of

the

regre

ssio

n l

ine

of

y on

x.

Use

of

the

equ

atio

n f

or

pre

dic

tio

n p

urp

ose

s.

Mat

hem

atic

al a

nd

co

nte

xtu

al i

nte

rpre

tati

on.

No

t req

uir

ed

:

the

coef

fici

ent

of

det

erm

inat

ion

R2.

Tec

hn

olo

gy s

ho

uld

be

use

d f

ind

th

e eq

uat

ion

.

Inte

rpo

lati

on

, ex

trap

ola

tio

n.

5.5

C

on

cepts

of

tria

l, o

utc

om

e, e

qu

ally

lik

ely

ou

tco

mes

, sa

mple

spac

e (U

) an

d e

ven

t.

Th

e sa

mple

spac

e ca

n b

e re

pre

sen

ted

dia

gra

mm

atic

ally

in

man

y w

ays.

TO

K:

To

wh

at e

xte

nt

does

mat

hem

atic

s o

ffer

mo

del

s o

f re

al l

ife?

Is

ther

e al

way

s a

fun

ctio

n

to m

od

el d

ata

beh

avio

ur?

Th

e pro

bab

ilit

y o

f an

even

t A

is

()

P(

)(

)

nA

An

U.

Th

e co

mple

men

tary

even

ts A

an

d A

(n

ot

A).

Use

of

Ven

n d

iagra

ms,

tre

e d

iagra

ms

and

table

s of

outc

om

es.

Ex

per

imen

ts u

sin

g c

oin

s, d

ice,

car

ds

and

so

on

,

can

enh

ance

un

der

stan

din

g o

f th

e d

isti

nct

ion

bet

wee

n (

exper

imen

tal)

rel

ativ

e fr

equ

ency

an

d

(th

eore

tica

l) p

robab

ilit

y.

Sim

ula

tions

may

be

use

d t

o e

nhan

ce t

his

topic

.

Lin

ks

to 5

.1,

freq

uen

cy;

5.3

, cu

mu

lati

ve

freq

uen

cy.

Page 15: IB Math SL Course Content - WordPress.com

Mathematics SL guide 31

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

5.6

C

om

bin

ed e

ven

ts,

P(

)A

B.

Mutu

ally

excl

usi

ve

even

ts:

P(

)0

AB

.

Condit

ional

pro

bab

ilit

y;

the

def

init

ion

P(

)P

|P

()

AB

AB

B.

Indep

enden

t ev

ents

; th

e def

init

ion

P|

P(

)P

|AB

AAB

.

Pro

bab

ilit

ies

wit

h a

nd w

ithout

repla

cem

ent.

The

non-e

xcl

usi

vit

y o

f “o

r”.

Pro

ble

ms

are

oft

en b

est

solv

ed w

ith t

he

aid o

f a

Ven

n d

iagra

m o

r tr

ee d

iagra

m, w

ithout

expli

cit

use

of

form

ula

e.

Aim

8:

The

gam

bli

ng i

ssue:

use

of

pro

bab

ilit

y

in c

asin

os.

Could

or

should

mat

hem

atic

s hel

p

incr

ease

inco

mes

in g

ambli

ng?

TO

K:

Is m

athem

atic

s use

ful

to m

easu

re r

isks?

TO

K:

Can

gam

bli

ng b

e co

nsi

der

ed a

s an

appli

cati

on o

f m

athem

atic

s? (

This

is

a good

opport

unit

y t

o g

ener

ate

a deb

ate

on t

he

nat

ure

,

role

and

eth

ics

of

mat

hem

atic

s re

gar

din

g i

ts

appli

cati

ons.

)

5.7

C

once

pt

of

dis

cret

e ra

ndom

var

iable

s an

d t

hei

r

pro

bab

ilit

y d

istr

ibuti

ons.

Sim

ple

exam

ple

s only

, su

ch a

s:

1P

()

(4)

18

Xx

x f

or

1,2,3

x;

56

7P

()

,,

18

18

18

Xx

.

Ex

pec

ted v

alue

(mea

n),

E(

)X

for

dis

cret

e dat

a.

Appli

cati

ons.

E(

)0

X i

ndic

ates

a f

air

gam

e w

her

e X

repre

sents

the

gai

n o

f one

of

the

pla

yer

s.

Exam

ple

s in

clude

gam

es o

f ch

ance

.

Page 16: IB Math SL Course Content - WordPress.com

Mathematics SL guide32

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

5.8

B

ino

mia

l dis

trib

uti

on

.

Mea

n a

nd

var

ian

ce o

f th

e bin

om

ial

dis

trib

uti

on

.

No

t req

uir

ed

: fo

rmal

pro

of

of

mea

n a

nd

var

ian

ce.

Lin

k t

o 1

.3,

bin

om

ial

theo

rem

.

Co

nd

itio

ns

un

der

whic

h r

and

om

var

iable

s hav

e

this

dis

trib

uti

on

.

Tec

hn

olo

gy i

s u

sual

ly t

he

bes

t w

ay o

f

calc

ula

tin

g b

ino

mia

l pro

bab

ilit

ies.

5.9

N

orm

al d

istr

ibu

tio

ns

and

cu

rves

.

Sta

nd

ardiz

atio

n o

f n

orm

al v

aria

ble

s (z-val

ues

,

z-sc

ore

s).

Pro

per

ties

of

the

no

rmal

dis

trib

uti

on

.

Pro

bab

ilit

ies

and

val

ues

of

the

var

iable

mu

st b

e

fou

nd

usi

ng t

ech

nolo

gy.

Lin

k t

o 2

.3, tr

ansf

orm

atio

ns.

Th

e st

and

ardiz

ed v

alu

e (z

) giv

es t

he

nu

mber

of

stan

dar

d d

evia

tio

ns

fro

m t

he

mea

n.

Ap

pl:

Bio

logy 1

.1.3

(li

nks

to n

orm

al

dis

trib

uti

on).

Ap

pl:

Psy

cholo

gy:

des

crip

tive

stat

isti

cs

(var

ious

pla

ces

in t

he

gu

ide)

.

Page 17: IB Math SL Course Content - WordPress.com

Mathematics SL guide 33

Syllabus content

Top

ic 6

—C

alc

ulu

s 4

0 h

ou

rs

Th

e ai

m o

f th

is t

opic

is

to i

ntr

odu

ce s

tud

ents

to

the

bas

ic c

on

cepts

an

d t

ech

niq

ues

of

dif

fere

nti

al a

nd

inte

gra

l ca

lcu

lus

and

th

eir

appli

cati

on

s.

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

6.1

In

form

al i

dea

s of

lim

it a

nd

co

nver

gen

ce.

Example

: 0

.3, 0

.33

, 0

.33

3,

...

con

ver

ges

to 1 3

.

Tec

hn

olo

gy s

ho

uld

be

use

d t

o e

xplo

re i

dea

s o

f

lim

its,

nu

mer

ical

ly a

nd

gra

ph

ical

ly.

Ap

pl:

Eco

no

mic

s 1

.5 (

mar

gin

al c

ost

, m

argin

al

reven

ue,

mar

gin

al p

rofi

t).

Ap

pl:

Ch

emis

try 1

1.3

.4 (

inte

rpre

tin

g t

he

gra

die

nt

of

a cu

rve)

.

Aim

8:

Th

e deb

ate

over

whet

her

New

ton

or

Lei

bnit

z d

isco

ver

ed c

erta

in c

alcu

lus

conce

pts

.

TO

K:

What

val

ue

does

th

e kn

ow

led

ge

of

lim

its

hav

e? I

s in

finit

esim

al b

ehav

iour

appli

cable

to

rea

l li

fe?

TO

K:

Op

port

unit

ies

for

dis

cuss

ing h

ypo

thes

is

form

atio

n a

nd

tes

tin

g,

and

th

en t

he

form

al

pro

of

can

be

tack

led

by c

om

par

ing c

erta

in

case

s, t

hro

ugh

an

in

ves

tigat

ive

appro

ach

.

Lim

it n

ota

tio

n.

Example

: 2

3li

m1

x

x x

Lin

ks

to 1

.1, in

finit

e geo

met

ric

seri

es;

2.5

–2.7

,

rati

onal

and e

xponen

tial

funct

ions,

and

asym

pto

tes.

Def

init

ion

of

der

ivat

ive

from

fir

st p

rin

ciple

s as

0

()

()

()

lim

h

fxh

fx

fx

h.

Use

of

this

def

init

ion

for

der

ivat

ives

of

sim

ple

po

lyn

om

ial

funct

ion

s o

nly

.

Tec

hn

olo

gy c

ou

ld b

e use

d t

o i

llu

stra

te o

ther

der

ivat

ives

.

Lin

k t

o 1

.3,

bin

om

ial

theo

rem

.

Use

of

bo

th f

orm

s o

f no

tati

on

, d d

y x an

d fx

,

for

the

firs

t d

eriv

ativ

e.

Der

ivat

ive

inte

rpre

ted

as

gra

die

nt

fun

ctio

n a

nd

as r

ate

of

chan

ge.

Iden

tify

ing i

nte

rval

s o

n w

hic

h f

unct

ion

s ar

e

incr

easi

ng o

r dec

reas

ing.

Tan

gen

ts a

nd

norm

als,

an

d t

hei

r eq

uat

ions.

No

t req

uir

ed

:

anal

yti

c m

eth

od

s o

f ca

lcu

lati

ng l

imit

s.

Use

of

bo

th a

nal

yti

c ap

pro

ach

es a

nd

tech

no

logy.

Tec

hn

olo

gy c

an b

e u

sed

to

ex

plo

re g

raphs

and

thei

r der

ivat

ives

.

Page 18: IB Math SL Course Content - WordPress.com

Mathematics SL guide34

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

6.2

D

eriv

ativ

e of

()

nxn

, si

nx

, co

sx

, ta

nx

,

ex a

nd

lnx

.

Dif

fere

nti

atio

n o

f a

sum

and a

rea

l m

ult

iple

of

thes

e fu

nct

ions.

The

chai

n r

ule

for

com

posi

te f

unct

ions.

The

pro

duct

and q

uoti

ent

rule

s.

Lin

k t

o 2

.1, co

mposi

tion o

f fu

nct

ions.

Tec

hnolo

gy m

ay b

e use

d to inves

tigat

e th

e ch

ain

rule

.

The

seco

nd d

eriv

ativ

e.

Use

of

both

form

s of

nota

tion,

2

2

d d

y

x a

nd

(

)fx

.

Exte

nsi

on t

o h

igher

der

ivat

ives

. d d

n

ny

x a

nd

(

)nf

x.

Page 19: IB Math SL Course Content - WordPress.com

Mathematics SL guide 35

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

6.3

L

oca

l m

axim

um

an

d m

inim

um

po

ints

.

Tes

tin

g f

or

max

imu

m o

r m

inim

um

.

Usi

ng c

han

ge

of

sign

of

the

firs

t d

eriv

ativ

e an

d

usi

ng s

ign

of

the

seco

nd

der

ivat

ive.

Use

of

the

term

s “c

on

cave-

up”

for

()

0fx

,

and

“co

nca

ve-

do

wn

” fo

r (

)0

fx

.

Ap

pl:

pro

fit,

are

a, v

olu

me.

Po

ints

of

infl

exio

n w

ith

zer

o a

nd

no

n-z

ero

gra

die

nts

. A

t a

poin

t o

f in

flex

ion

,

()

0fx

and

ch

anges

sign

(co

nca

vit

y c

han

ge)

.

()

0fx

is

not

a su

ffic

ien

t co

ndit

ion

fo

r a

po

int

of

infl

exio

n:

for

exam

ple

, 4

yx

at

(0,0

).

Gra

ph

ical

beh

avio

ur

of

funct

ion

s,

incl

ud

ing t

he

rela

tio

nsh

ip b

etw

een t

he

gra

ph

s o

f f

, f

an

d f

.

Opti

miz

atio

n.

Bo

th “

glo

bal

” (f

or

larg

e x

) an

d “

loca

l”

beh

avio

ur.

Tec

hn

olo

gy c

an d

ispla

y t

he

gra

ph

of

a

der

ivat

ive

wit

ho

ut

expli

citl

y f

ind

ing a

n

expre

ssio

n f

or

the

der

ivat

ive.

Use

of

the

firs

t o

r se

con

d d

eriv

ativ

e te

st t

o

just

ify m

axim

um

an

d/o

r m

inim

um

val

ues

.

Ap

pli

cati

ons.

No

t req

uir

ed

:

po

ints

of

infl

exio

n w

her

e (

)fx

is n

ot

def

ined

:

for

exam

ple

, 1

3yx

at

(0,0

).

Ex

ample

s in

clu

de

pro

fit,

are

a, v

olu

me.

Lin

k t

o 2

.2,

gra

ph

ing f

unct

ion

s.

Page 20: IB Math SL Course Content - WordPress.com

Mathematics SL guide36

Syllabus content

C

on

ten

t F

urt

he

r g

uid

an

ce

Lin

ks

6.4

In

def

init

e in

tegra

tion a

s an

ti-d

iffe

renti

atio

n.

Indef

init

e in

tegra

l of

()

nxn

, si

nx

, co

sx

,

1 x a

nd ex.

1d

lnx

xC

x,

0x

.

The

com

posi

tes

of

any o

f th

ese

wit

h t

he

linea

r

funct

ion axb

.

Example

:

1(

)co

s(2

3)

()

sin

(23)

2fx

xfx

xC

.

Inte

gra

tion b

y i

nsp

ecti

on, or

subst

ituti

on o

f th

e

form

(

())

'()d

fgxgxx

.

Examples:

42

22

1d

,si

nd

,d

sin

cos

xx

xx

xx

xx x

.

6.5

A

nti

-dif

fere

nti

atio

n w

ith a

boundar

y c

ondit

ion

to d

eter

min

e th

e co

nst

ant

term

.

Example

:

if

2d

3d

yx

xx

and

10

y w

hen

0

x, th

en

32

11

02

yx

x.

Int:

Succ

essf

ul

calc

ula

tion o

f th

e volu

me

of

the

pyra

mid

al f

rust

um

by a

nci

ent

Egypti

ans

(Egypti

an M

osc

ow

pap

yru

s).

Use

of

infi

nit

esim

als

by G

reek

geo

met

ers.

Def

init

e in

tegra

ls,

both

anal

yti

call

y a

nd u

sing

tech

nolo

gy.

()d

()

()

b agxxgb

ga

.

The

val

ue

of

som

e def

init

e in

tegra

ls c

an o

nly

be

found u

sing t

echnolo

gy.

Acc

ura

te c

alcu

lati

on o

f th

e volu

me

of

a

cyli

nder

by C

hin

ese

mat

hem

atic

ian L

iu H

ui

Are

as u

nder

curv

es (

bet

wee

n t

he

curv

e an

d t

he

x-ax

is).

Are

as b

etw

een c

urv

es.

Volu

mes

of

revolu

tion a

bout

the x-

axis

.

Stu

den

ts a

re e

xpec

ted t

o f

irst

wri

te a

corr

ect

expre

ssio

n b

efore

cal

cula

ting t

he

area

.

Tec

hnolo

gy m

ay b

e use

d t

o e

nhan

ce

under

stan

din

g o

f ar

ea a

nd v

olu

me.

Int:

Ibn A

l H

ayth

am:

firs

t m

athem

atic

ian t

o

calc

ula

te t

he

inte

gra

l of

a fu

nct

ion, in

ord

er t

o

find t

he

volu

me

of

a par

abolo

id.

6.6

K

inem

atic

pro

ble

ms

involv

ing d

ispla

cem

ent s,

vel

oci

ty v

and a

ccel

erat

ion a

. d d

sv

t;

2

2

dd

dd

vs

at

t.

Ap

pl:

Physi

cs 2

.1 (

kin

emat

ics)

.

Tota

l dis

tance

tra

vel

led.

Tota

l dis

tance

tra

vel

led

2

1

dt tvt.