Do do you this one please

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- July 1st 2007, 11:35 AMcamherokidIntergration by substitution
Do do you this one please

- July 1st 2007, 11:41 AMred_dog

- July 1st 2007, 11:43 AMJhevon
- July 1st 2007, 11:44 AMred_dog
is an odd function and is a symetric interval, so the integral is .

- July 1st 2007, 11:52 AMJhevon
I will do the indefinite integral for the second, i leave plugging in the limits to you

We proceed by substitution for the first integral:

Let

- July 1st 2007, 11:54 AMJhevon
- July 1st 2007, 02:13 PMgalactus
Another possible solution, similar to Jhevon's is:

Now, let

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Let

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So, we have

- July 2nd 2007, 04:28 AMcurvature