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    IB Math AAHL
    /
    Trig equations & identities
    /

    Video

    Video Reviews

    Watch comprehensive video reviews 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.

    Trig equations & identities

    Video Reviews

    Watch comprehensive video reviews for Trig equations & identities, 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.

    Unit circleTrig functionsTrig equationsIdentitiesHL functionsHL Identities

    The video will automatically pause when it reaches a problem.

    Reciprocal trig functions

    AHL 3.9

    The reciprocal trig functions are functions of the form f(x)1​, where f is sin,cos or tan. The three reciprocal trig functions are:

    secθ cosecθ cotθ​=cosθ1​📖 =sinθ1​📖 =tanθ1​📖​


    Example

    Find cosec(3π​).

    cosec(3π​)=sin(3π​)1​=2√3​1​=√32​=32√3​

    Reciprocal trig functions

    AHL 3.9

    The reciprocal trig functions are functions of the form f(x)1​, where f is sin,cos or tan. The three reciprocal trig functions are:

    secθ cosecθ cotθ​=cosθ1​📖 =sinθ1​📖 =tanθ1​📖​


    Example

    Find cosec(3π​).

    cosec(3π​)=sin(3π​)1​=2√3​1​=√32​=32√3​
    Unit circleTrig functionsTrig equationsIdentitiesHL functionsHL Identities