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Thread: trig proofing

  1. #1
    Oct 2006

    trig proofing

    I am currently trying to make a difficult trig proof for my maths lesson. If someone could help me make one, that would be very helpful. I have been given a left hand side, ((cosec(x))^2)\(2+cot(x)). I need it to be changed into something as different as possible from the original, with as many steps as possible, without a very long right hand side. Feel free to use all trig rules.
    If someone could do this for me it would be great.
    Thanks in advance,
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  2. #2
    Global Moderator

    Nov 2005
    New York City
    Tell you class to show that,
    $\displaystyle \tan \frac{x}{2} = \frac{2\sin x}{1-\cos x}$
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