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Math Help - Proof for sin and cos

  1. #1
    oblacn
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    Question Proof for sin and cos

    i cannot prove this no matter what i try to do! I need help to be able to pass my test tommorrow.

    Prove sin(t)/(1-cos(t)) = (1+cos(t)) / sin(t)

    I worked with the left terms:

    sin(t) / (1-cos(t)) | Problem

    sin(t) / (sin^2(t) + cos^2(t)-cos(t)) | Pythagorean ID:sin^2(t) + cos^2(t) = 1

    what to do next? i already tried seperating all the terms and that doesn't work out. I have a test tomorrow on this stuff and i really need some help.
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  2. #2
    MHF Contributor
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    Multiply the right side by \frac{1-\cos(t)}{1-\cos(t)}.
    Last edited by Jameson; October 26th 2005 at 05:20 PM.
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  3. #3
    MHF Contributor
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    Do you see the answer? It's not too many steps ahead of the hint I gave you.
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