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Math Help - Trigonometric Identities

  1. #1
    Newbie
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    Trigonometric Identities

    Hi there .

    I'm not sure on how to do this question so I wondering if I could get some help . I'd greatly appreciate it :



    Create a trigonometric identity that requires at least 3 steps in the solution to prove it is an identity. The identity must also include cosecant, secant or cotangent. Provide solution .


    HUGE Thank you in advance .
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  2. #2
    MHF Contributor
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    This isn't as hard as it sounds.

    Take something simple like \sec(x)

    Well \sec(x)=\frac{1}{\cos(x)}

    And \sin^2(x)+\cos^2(x)=1, so \sec(x)=\frac{1}{\sin^2(x)\cos(x)+\cos^3(x)}

    Take it one more step.
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