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trig identities help?

Establish the identity wile showing all the steps please?

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  • ?
    Lv 7
    1 day ago
    Favorite Answer

    // Note that sin² θ + cos² θ = 1

    //            so sin² θ = 1 - cos² θ ....................[1]

    // Also, 1 + cot² θ = csc² θ = 1/sin² θ ..........[2]

    // Therefore,

    (1 - cos² θ)(1 + cot² θ) = (sin² θ)(1/sin² θ) = 1 .........ANS

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