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Math Help - Trig Identities.

  1. #1
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    Trig Identities.

    Here is a trig question I need help solving (step by step walk-through would be the most beneficial)
    Our teacher prefers that we only work on one side.



    1 - csc^2 x / 1 + csc x = sin x - 1 / sin x
    Last edited by mr fantastic; May 27th 2011 at 03:36 AM. Reason: Deleted begging from title.
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  2. #2
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    You have not shown the brackets.

    (1 - csc^2 x) / (1 + csc x) = (sin x - 1) / sin x

    Is it correct?
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  3. #3
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    Yes that is correct, my apologies
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  4. #4
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    Start by writing everything in terms of sines and cosines, then get common denominators and apply the Pythagorean Theorem.
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  5. #5
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    Factorize (1 - csc^2 x) just like (a^2 - b^2), then simplify.
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