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Math Help - Find length of a plane curve y=2x^3/2 from x=4 to x=16

  1. #1
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    Find length of a plane curve y=2x^3/2 from x=4 to x=16

    I need help with finding the length of a plane curve y=2x^3/2 from x=4 to x=16

    Thank you
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  2. #2
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    Krizalid's Avatar
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    straightforward.

    show us what you've done to see where's your problem.
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  3. #3
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    So I did a integral on the square root of 1+[F'(x)]^2 dx from 4 to 16 and then I used a u substitution for 1+9x and got 112.66. But not sure if I did it right.
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  4. #4
    Math Engineering Student
    Krizalid's Avatar
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    it's correct.
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