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Math Help - evaluate the indefinite integral

  1. #1
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    evaluate the indefinite integral



    Hi, I'm having trouble trying to solve this last problem on my homework. I dont understand what I have to do with the dx that's on top.

    Can anyone help me out?

    Thank you.
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  2. #2
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     \int \frac{dx}{(4+x^2)^2}= \int \frac{1}{(4+x^2)^2}~dx

    does this make it easier?
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  3. #3
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    Quote Originally Posted by pickslides View Post
     \int \frac{dx}{(4+x^2)^2}= \int \frac{1}{(4+x^2)^2}~dx

    does this make it easier?
    That's all I needed to do? lol. If so, I believe I can take it from here.

    I solved it and got the right answer. Thank you for the speedy response.
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