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Math Help - arch length of x^(3/2)

  1. #1
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    arch length of x^(3/2)

    I have to get the arch length of this function between x = 0 and x= 2

    So, I used the arch length formula of the integral from 0 to 2 of sqrt[1 + (3/2x^1/2)^2] I get 3.82 but the answer is 3.53!!!! I got 8/27 (9/4x + 1)^(3/2) for my antider and evaluated it from 0 to 2. Can someone please tell me where I went wrong? Thank you.
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  2. #2
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    Krizalid's Avatar
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    We can't. Unless, you to let us know what's your solution.
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  3. #3
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    arch length problem

    When I evaluate this integral I get 3.82 for the interval of 0 to 2
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  4. #4
    Math Engineering Student
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    No problem with that! But you must share your solution to see where the mistake is!

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  5. #5
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    Archlength problem

    Thanks for looking, I figured it out I forgot to subtract the value when x is 0 which in this case has a value of 8/27. I have it!!! THanks for your time.
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