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Math Help - Arc Length Question - Help Needed

  1. #1
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    Arc Length Question - Help Needed

    Im currently in the process of completing an assignment that requires me to find the arc length of a particular function. In this case the function is:

    f(x) = (4.5/(1+25e^-x)) + 2.8

    from x = -8 to 8

    Here's the catch; as the course im doing has yet to introduce integration by parts or substitution to us, im not allowed to use them.

    If anyone could solve this problem, or offer any help whatsoever, it would be much appreciated!
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  2. #2
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    Ridiculous - integration by parts and substitution, which are basic integration techniques, are supposed to be taught long before advanced vector calculus such as this.
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  3. #3
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    well, I managed to avoid the stated restrictions on performing the integration ... my calculator says the arc length is approximately 17.435518451
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