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Thread: Trigonometric Derivative

  1. #1 Trigonometric Derivative 
    Forum Ph.D. Heinsbergrelatz's Avatar
    Join Date
    Aug 2009
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    Singapore
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    994
    hello members of the science forum, can anyone help me do this question (its not hmwrk);
    differentiate;
    and

    and finally

    in case you guys think im being lazy, ill try and solve the first one, can you please correct me if im wrong? can you try and help me solve the others also please.

    first try and differentiate the first part using the
    so it becomes then you differentiate the second part then at last you simplify it in to


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