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Math Help - intergration double check

  1. #1
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    intergration double check

    find the intergral


    so i did long divisoin, this will look messy but this is what it simplified to
    i double checked with the tutor about this answer but wolf ram gets somthing different.
    5x^2 + 3x - 5 + ((8x-1)/(x^2 + 1))
    so the intergral of that
    ended up looking liiike

    (5x^3)/3 - 3x^2 / 2 - 5x + 4log(x^2 + 2) - arctan x
    is that right

    wolf ram go, instead of 8x- 1 as the remainder 8x - 11
    and i got 8x - 11 the first time ,but i made a mistake in the calculation
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  2. #2
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    Quote Originally Posted by Daniiel View Post
    find the intergral


    so i did long divisoin, this will look messy but this is what it simplified to
    i double checked with the tutor about this answer but wolf ram gets somthing different.
    5x^2 + 3x - 5 + ((8x-1)/(x^2 + 1))
    so the intergral of that
    ended up looking liiike

    (5x^3)/3 - 3x^2 / 2 - 5x + 4log(x^2 + 2) - arctan x
    is that right

    wolf ram go, instead of 8x- 1 as the remainder 8x - 11
    and i got 8x - 11 the first time ,but i made a mistake in the calculation
    the remainder of 8x-1 is correct .

    And your integration is also correct .
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  3. #3
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    ok cheers
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