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Math Help - integration check #2

  1. #1
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    integration check #2

    \int \frac {1}{\sqrt[3]{4-5x}}

    \int(4-5x)^{-1/3}

    = \frac {-3}{10}(4-5x)^{2/3}

    is this correct? thanks you
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  2. #2
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    Yes. Don't forget to add a plus C.
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  3. #3
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by jvignacio View Post
    \int \frac {1}{\sqrt[3]{4-5x}}

    \int(4-5x)^{-1/3}

    = \frac {-3}{10}(4-5x)^{2/3}

    is this correct? thanks you
    yes

    you forgot the +C again


    for the record, you can always check your answer by differentiating what you got. if you take the derivative of the answer, you should get the original integrand
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  4. #4
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    Quote Originally Posted by Chop Suey View Post
    Yes. Don't forget to add a plus C.
    every integration u add + C ?
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  5. #5
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by jvignacio View Post
    every integration u add + C ?
    only the indefinite ones. that is, the ones without integration limits (those numbers attached to the top and bottom of the integration sign)
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  6. #6
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    You might want to check you answer in the following websites listed in this thread. Hope it helps.

    http://www.mathhelpforum.com/math-he...tegration.html
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  7. #7
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    Quote Originally Posted by tester85 View Post
    You might want to check you answer in the following websites listed in this thread. Hope it helps.

    http://www.mathhelpforum.com/math-he...tegration.html

    thanks for that.. ill be sure to have a look at em next time
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