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Math Help - reduction formula

  1. #1
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    Post reduction formula

    Hey All,

    sorry for the over flow of questions today. got exam very soon..

    I need some help in the following question :

    thanks
    Attached Thumbnails Attached Thumbnails reduction formula-reduction.gif  
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  2. #2
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    what I don't get is how would I apply the integration by parts to cos^nxdx ??

    what is u and dv?
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  3. #3
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    Differenciate both sides.

    And use the fact that the derivative of I_n is cos^n x
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  4. #4
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    how would I differentiate both sides
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  5. #5
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    I donít think that differentiation is the way to proceed with it.
    Here is as pdf file that I wrote with EXP and Acrobat distiller.
    I used parts.
    Attached Files Attached Files
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