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

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
/
Counting & Binomials
/
Video
Edit

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.

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)

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)