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Thread: Integration

  1. November 15th 2006, 11:58 AM #1
    changing_seasons
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    Integration

    Hello everyone, first post here. I just need some help on this integral. I can't seem to get it right, any help is appreciated. I don't even need a full solution, just give me some hints. Thanks.

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  2. November 15th 2006, 12:56 PM #2
    ThePerfectHacker
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    Quote Originally Posted by changing_seasons View Post
    Hello everyone, first post here. I just need some help on this integral. I can't seem to get it right, any help is appreciated. I don't even need a full solution, just give me some hints. Thanks.

    a\not = 0
    First open the parantheses.
    \int <br /> x\sqrt{1-\frac{x^2}{a^2}}dx
    Use substitution function,
    u=\frac{x^2}{a^2}
    The rest is trivial.
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  3. November 15th 2006, 01:27 PM #3
    changing_seasons
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    Oh yeah, I got it now. Thanks.
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