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Math Help - Simplify Trig

  1. #1
    Junior Member
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    Simplify Trig

    Please take a look at the attached question, thank you!
    Attached Thumbnails Attached Thumbnails Simplify Trig-untitled.jpg  
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  2. #2
    Super Member
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    Jun 2008
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    Recall that:
    \tan^2{x} = \sec^2{x} - 1

    Notice that 1-\sec^2{x} = -(\sec^2{x}-1)

    You end up with -\cot{x}\sin{x}...Remember that \cot{x} = \frac{\cos{x}}{\sin{x}}
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