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Math Help - derivative check answer please!

  1. #1
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    Santiago
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    derivative check answer please!

    <br /> <br />
y = xsinx - cosx<br /> <br />

    its derivative is:

    <br /> <br />
y' = (sinx + xcosx) + sinx <br /> <br />

    correct? thank u
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  2. #2
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    Yes.
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  3. #3
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    Quote Originally Posted by Chop Suey View Post
    Yes.
    thank u!
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