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Math Help - tricky integral

  1. #1
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    tricky integral

    How do you use the fundamental theorem of calculus compute

    \frac{d}{db} \int_{0}^{b} b f(x) dx
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  2. #2
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    Quote Originally Posted by soloakewlstick View Post
    How do you use the fundamental theorem of calculus compute

    \frac{d}{db} \int_{0}^{b} b f(x) dx
    there's nothing tricky about the question! use product rule. the answer is: bf(b) + \int_0^b f(x) dx.
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  3. #3
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    thanks!
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