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Thread: definite integral

  1. April 19th 2010, 03:49 PM #1
    tbenne3
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    definite integral

    Evaluate the definite integral.
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  2. April 19th 2010, 03:56 PM #2
    pickslides
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    Try a substitution

    u=\ln x \implies \frac{du}{dx} = \frac{1}{x} <br />
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  3. April 19th 2010, 04:01 PM #3
    tbenne3
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    Quote Originally Posted by pickslides View Post
    Try a substitution

    u=\ln x \implies \frac{du}{dx} = \frac{1}{x} <br />
    ok so what do I do with the 1/x ?
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  4. April 19th 2010, 04:05 PM #4
    pickslides
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    Quote Originally Posted by tbenne3 View Post
    ok so what do I do with the 1/x ?
    Re-write the integral in light of these substitutions.
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