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Math Help - TI-89 Integration

  1. #1
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    Red face TI-89 Integration

    I've been using a TI-89 to check my work in my calc class, but I'm not sure how to enter one of the problems. It is:

    integrate (from 0 to 16) (x^3 dx)/(x^2+32x+256)

    I've never entered dx in the integrand before so is there a way to do it?

    sfskseg
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  2. #2
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    Quote Originally Posted by sfskseg View Post
    I've been using a TI-89 to check my work in my calc class, but I'm not sure how to enter one of the problems. It is:

    integrate (from 0 to 16) (x^3 dx)/(x^2+32x+256)

    I've never entered dx in the integrand before so is there a way to do it?

    sfskseg
    Note that \int{\frac{x^3\,dx}{x^2 + 32x + 256}} = \int{\frac{x^3}{x^2 + 32x + 256}\,dx}.


    So just enter it as you normally would without the dx.
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  3. #3
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    Quote Originally Posted by sfskseg View Post
    I've been using a TI-89 to check my work in my calc class, but I'm not sure how to enter one of the problems. It is:

    integrate (from 0 to 16) (x^3 dx)/(x^2+32x+256)

    I've never entered dx in the integrand before so is there a way to do it?

    sfskseg
    Get \int( from the F3 menue. Then:

    \int( x^3/(x^2 + 32x + 256), x, 0, 16)
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  4. #4
    MHF Contributor matheagle's Avatar
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    It's easier to just ban these from class
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