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Math Help - evaluate indefinite integral

  1. #1
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    evaluate indefinite integral

    oops i meant definite integral

    find \int_0^2 3x^2f(x^3) dx if \int_0^8 f(t) dt = k
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  2. #2
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    Quote Originally Posted by yoman360 View Post
    oops i meant definite integral

    find \int_0^2 3x^2f(x^3) dx if \int_0^8 f(t) dt = k
    t = x^3

    dt = 3x^2 \, dx

    \int_0^2 3x^2f(x^3) \, dx

    sub and reset limits of integration ...

    \int_0^8 f(t) \, dt

    finish ... ?
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  3. #3
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    Quote Originally Posted by skeeter View Post
    t = x^3

    dt = 3x^2 \, dx

    \int_0^2 3x^2f(x^3) \, dx

    sub and reset limits of integration ...

    \int_0^8 f(t) \, dt

    finish ... ?
    Thanks
    Follow Math Help Forum on Facebook and Google+

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