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Math Help - could really use help with Intergration

  1. #1
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    could really use help with Intergration

    Can someone please walk me through the rest of this intergration question, ive started it off, but do not know hoe to proceed.

    the curve of a hill is y = 18x^2 - 12x -4x^3 + 110

    Ive completed the table as follows, and tried to put all the info in a bitmap, ignore the sketch part, any help would be awsome guys.


    [IMG][/IMG]
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  2. #2
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    Quote Originally Posted by bobbymellor View Post
    Can someone please walk me through the rest of this intergration question, ive started it off, but do not know hoe to proceed.

    the curve of a hill is y = 18x^2 - 12x -4x^3 + 110

    Ive completed the table as follows, and tried to put all the info in a bitmap, ignore the sketch part, any help would be awsome guys.


    [IMG][/IMG]
    First things first, your table is wrong.

    18\times1^2-12\times1-4\times1^3+110=18-12-4+110=112

    18x^2=18\times x \times x it is not 18x \times 18x

    Have you heard of BIDMAS ?

    Next the integration

    \int ax^n dx=\frac{ax^{n+1}}{n+1} (EDIT .....) + C

    If you're being asked to do this work I'd hope that this, together with some examples, is in your notes somewhere.
    Last edited by a tutor; March 14th 2008 at 07:07 AM.
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