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Thread: Integration by Substitution!

  1. January 13th 2010, 06:01 AM #1
    littlesohi
    littlesohi is offline
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    Integration by Substitution!

    I don't know which of the factores to pick out as the "u"

    1. integral of e ^x/2

    2. integral of ln4xdx/x

    thanks!
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  2. January 13th 2010, 06:07 AM #2
    dedust
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    Quote Originally Posted by littlesohi View Post
    I don't know which of the factores to pick out as the "u"

    1. integral of e ^x/2

    2. integral of ln4xdx/x

    thanks!
    1. u = \frac{x}{2}

    2. u = \ln 4x
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