can someone help using simple techniques of antidifferentiation? / substitution?

i cant get this one

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- Jun 18th 2007, 06:59 AM^_^Engineer_Adam^_^having trouble with this integral
can someone help using simple techniques of antidifferentiation? / substitution?

i cant get this one

- Jun 18th 2007, 07:37 AMPterid
I have one rough solution...

The integral to be solved is:

Split it up for convenience:

...and the first bracket is now the derivative of . Hence, the integrand lends itself to integration by parts.

This agrees with The Integrator (i.e. Mathematica). - Jun 18th 2007, 07:50 AMPlato

- Jun 18th 2007, 10:51 AMKrizalid
Set

The integral becomes to

- Jun 18th 2007, 03:38 PM^_^Engineer_Adam^_^
ty!!!

- Jun 18th 2007, 03:56 PM^_^Engineer_Adam^_^
- Jun 18th 2007, 04:01 PMKrizalid
If

Plus

- Jun 19th 2007, 12:58 AM^_^Engineer_Adam^_^
hi

im not quite sure how to do it using sub but ill using the sub of krizalid:

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