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Math Help - Trig functions

  1. #1
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    Question Trig functions

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  2. #2
    Super Member
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    What's the question, find f(x)?

    I'm going to assume that is the case. Recall that:
    cos(-x) = cos(x)
    sin(-x) = -sin(x)
    tan(-x) = -tan(x)

    This is the same for their reciprocals. Knowing this, we reach here:

    -\frac{\cos{x}}{\sin{x}}\cdot \cos{x} - \sin{x}

    Combine sin(x) with the fraction to get:
    -\frac{\cos^2{x}}{\sin{x}} - \frac{\sin^2{x}}{\sin{x}}

    Can you continue now?
    Last edited by Chop Suey; October 7th 2008 at 12:47 PM.
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  3. #3
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    No...I don't know how to break that into something more simple
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