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    chip21breuer's Avatar
    chip21breuer Posts: 2, Reputation: 1
    New Member
     
    #1

    Oct 23, 2012, 08:22 AM
    establish the identity:
    sin4(theta) -sin8(theta)/ cos4(theta)-cos8(theta) = -cot6(theta)
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
     
    #2

    Oct 23, 2012, 08:26 AM
    What do YOU think ?
    While we're happy to HELP we won't do all the work for you.
    Show us what you have done and where you are having problems..
    chip21breuer's Avatar
    chip21breuer Posts: 2, Reputation: 1
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    #3

    Oct 23, 2012, 08:30 AM
    I simplified it so that its

    -sin4(theta)/-cos4(theta) and then I switched it so its -cos4(theta)/-sin4(theta)

    now I'm stuck.

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