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Math Help - Factoring trig functions.

  1. #1
    Junior Member
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    Factoring trig functions.

    Simplify each to one of three primary trig functions.

    a)sinx+tanx/1+cosx

    MY ATTEMPT:

    sin +sin/cos / 1+cos
    sincos+sin/cos * 1/1+cos
    sincos+sin/cos+cos^2x

    i dont know really what to do from there answer is tan or where i went wrong.
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  2. #2
    MHF Contributor
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    Re: Factoring trig functions.

    Hey skg94.

    sin(x)cos(x) + sin(x) = sin(x)[1 + cos(x)] and cos(x) + cos^2(x) = cos(x)[1 + cos(x)]. You have a common term in both which cancel, but now you are left with sin(x)/cos(x) which is?
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