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  • Perplex
    IB Math AAHL
    /
    Counting & Binomials
    /

    Lessons

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    Concept Lessons

    Access comprehensive explorations for all concepts in your objective, including problems, helpful visuals, and AI features.

    What you'll find in every lesson:

    High-quality explanations: Each lesson is carefully crafted to help you truly understand the concept, not just memorize it.

    Checkpoint exercises: Practice as you learn with interactive problems designed to reinforce your understanding.

    AI-powered discussions: Engage with thought-provoking questions that help reveal your misconceptions.

    What you'll find in every lesson:

    High-quality explanations: Each lesson is carefully crafted to help you truly understand the concept, not just memorize it.

    Checkpoint exercises: Practice as you learn with interactive problems designed to reinforce your understanding.

    AI-powered discussions: Engage with thought-provoking questions that help reveal your misconceptions.

    Concept Lessons

    Access comprehensive explorations for all concepts in your objective, including problems, helpful visuals, and AI features.

    4 Lessons Available

    What you'll find in every lesson:

    High-quality explanations: Each lesson is carefully crafted to help you truly understand the concept, not just memorize it.

    Checkpoint exercises: Practice as you learn with interactive problems designed to reinforce your understanding.

    AI-powered discussions: Engage with thought-provoking questions that help reveal your misconceptions.

    What you'll find in every lesson:

    High-quality explanations: Each lesson is carefully crafted to help you truly understand the concept, not just memorize it.

    Checkpoint exercises: Practice as you learn with interactive problems designed to reinforce your understanding.

    AI-powered discussions: Engage with thought-provoking questions that help reveal your misconceptions.

    Counting & Binomials

    Thumbnail for Pascal's Triangle and nCr

    Theoretical introduction to n​Cr​, or (nr​), and Pascal's triangle.

    Pascal's Triangle and nCr
    Thumbnail for Binomial Theorem

    Using nCr​ to expand binomials like (1+2x)7.

    Binomial Theorem (Plus Only)
    Thumbnail for Counting

    Using permutations & combinations alongside principles to count the ways things can be selected or arranged.

    Counting (Plus Only)
    Thumbnail for Counting with Restrictions

    Advanced techniques for scenarios with branches, negative counting, and permutations where items need to stay together / separate.

    Counting with Restrictions (Plus Only)