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Math Help - Integrals

  1. #1
    Junior Member
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    Oct 2008
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    Integrals

    We just started integrals, and I wanna see if I did this right:

    \int (\frac {1}{x^7} - x^7 - \frac {1}{9})

    Gettin good at my LaTeX Except cant get negative exponents to work

    so, I make ti easier, by doing powers, so I change them all to powers.

    x^-7 - x^7 - 9^-1

    do antideriv to get: dx= \frac {-6}{x} - \frac {x^8}{8} - 9 + C

    Get it right?
    Last edited by BCHurricane89; October 22nd 2008 at 09:58 AM.
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  2. #2
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    1/9 is a constant, you don't integrate it like a variable. Just add a x to it. Also, for future reference,  \int 1/x \,dx \not= x
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