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Math Help - Integration by substitution problem

  1. #1
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    Integration by substitution problem

    Trying to integrate



    I'm told to use

    but when I try to change the pi/2 and 0 into terms of u I get

    pi/2 ===> 1

    and

    0===> 2

    Do I put it as



    Thanks
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  2. #2
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    Quote Originally Posted by Bladeowen View Post
    Trying to integrate



    I'm told to use

    but when I try to change the pi/2 and 0 into terms of u I get

    pi/2 ===> 1 ... new upper limit

    and

    0===> 2 ... new lower limit

    Do I put it as

    second one
    ...
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  3. #3
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    thanks - I was always told to make sure largest one goes to the top.
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