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Math Help - integration

  1. #1
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    integration

    how do i integrate ... x^3 . sqrt(x)

    i know that the integral of x^3 is x^4/4 and also the sqrt(x) is (x^3/2)/(3/2)

    but im not sure how to do them together...

    help please
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  2. #2
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    Quote Originally Posted by b00yeah05 View Post
    how do i integrate ... x^3 . sqrt(x)

    i know that the integral of x^3 is x^4/4 and also the sqrt(x) is (x^3/2)/(3/2)

    but im not sure how to do them together...

    help please
    x^3 \sqrt{x} = x^3 x^{1/2} = x^{7/2}. Now use the usual rule for integrating x^n.
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