Perplex
Dashboard
Topics
Exponents & LogarithmsApproximations & ErrorSequences & SeriesCounting & BinomialsProof and ReasoningComplex Numbers
Cartesian plane & linesQuadraticsFunction TheoryTransformations & asymptotesPolynomials
2D & 3D GeometryTrig equations & identitiesVectors
ProbabilityDescriptive StatisticsDistributions & Random Variables
DifferentiationIntegrationDifferential EquationsMaclaurin
Review VideosFormula BookletMy Progress
BlogLanding Page
Sign UpLogin
Perplex
Perplex
Dashboard
Topics
Exponents & LogarithmsApproximations & ErrorSequences & SeriesCounting & BinomialsProof and ReasoningComplex Numbers
Cartesian plane & linesQuadraticsFunction TheoryTransformations & asymptotesPolynomials
2D & 3D GeometryTrig equations & identitiesVectors
ProbabilityDescriptive StatisticsDistributions & Random Variables
DifferentiationIntegrationDifferential EquationsMaclaurin
Review VideosFormula BookletMy Progress
BlogLanding Page
Sign UpLogin
Perplex
IB Math AAHL
/
All units
/
Video

Video Review

Watch comprehensive review videos for most units, designed for final exam preparation. Each video includes integrated problems you can solve alongside detailed solutions.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

IB Math AAHL
/
All units
/
Video

Video Review

Watch comprehensive review videos for most units, designed for final exam preparation. Each video includes integrated problems you can solve alongside detailed solutions.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

Back

Counting & Binomials

Video Review

Timeline

SL THEORY

Factorials

00:32

Exercise

02:39

Consider the expansion of \(\left(a+b\right)^3\):

04:18

The notation \(^nC_r\), or "\(n\) choose \(r\)", r

15:04

Binomial Coefficient nCr

21:31

Pascal's Triangle

23:16

Connection between nCr and Pascal's Triangle

24:22

The expansion of (a+b)ⁿ

26:02

Exercise

27:47

Finding the coefficient of a specific term

30:05

Exercise

33:28

BINOMIAL PROBLEMS

Problem

35:03

Problem

38:57

Problem

43:06

Problem

50:56

Problem

56:40

COUNTING (HL)

Ordering items

1:07:47

Exercise

1:09:10

Permutations

1:09:29

Exercise

1:15:13

Combinations

1:15:56

Exercise

1:17:59

Problem

1:18:16

Counting principles

1:25:36

Exercise

1:27:30

Problem

1:29:10

Orderings where certain items need to stay together

1:34:03

Orderings where certain items need to stay apart

1:35:04

Complementary events

1:36:13

Problem

1:39:09

Problem

1:46:15

Problem

1:50:45

Problem

1:53:40

Problem

2:08:54

Problem

2:18:13

SL TheoryBinomial ProblemsCounting (HL)

The video will automatically pause when it reaches a problem.

SL TheoryBinomial ProblemsCounting (HL)
Back

Counting & Binomials

Video Review

Timeline

SL THEORY

Factorials

00:32

Exercise

02:39

Consider the expansion of \(\left(a+b\right)^3\):

04:18

The notation \(^nC_r\), or "\(n\) choose \(r\)", r

15:04

Binomial Coefficient nCr

21:31

Pascal's Triangle

23:16

Connection between nCr and Pascal's Triangle

24:22

The expansion of (a+b)ⁿ

26:02

Exercise

27:47

Finding the coefficient of a specific term

30:05

Exercise

33:28

BINOMIAL PROBLEMS

Problem

35:03

Problem

38:57

Problem

43:06

Problem

50:56

Problem

56:40

COUNTING (HL)

Ordering items

1:07:47

Exercise

1:09:10

Permutations

1:09:29

Exercise

1:15:13

Combinations

1:15:56

Exercise

1:17:59

Problem

1:18:16

Counting principles

1:25:36

Exercise

1:27:30

Problem

1:29:10

Orderings where certain items need to stay together

1:34:03

Orderings where certain items need to stay apart

1:35:04

Complementary events

1:36:13

Problem

1:39:09

Problem

1:46:15

Problem

1:50:45

Problem

1:53:40

Problem

2:08:54

Problem

2:18:13

SL TheoryBinomial ProblemsCounting (HL)

The video will automatically pause when it reaches a problem.

SL TheoryBinomial ProblemsCounting (HL)