I always have problems integrating a multiplication equation. How do I integrate an equation like this one:

I tried doing it by parts but still canot solve it.

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- Oct 25th 2010, 09:00 PMxEnOnHow do I integrate a multiplication equation?
I always have problems integrating a multiplication equation. How do I integrate an equation like this one:

I tried doing it by parts but still canot solve it. - Oct 25th 2010, 09:21 PMUnknown008
You could not use by parts?

Clean up;

By parts for the second part;

Does the last part of the integral seem familiar?

Clean up:

Expand the brackets;

The trick now is to send the last part to the left.

Simplify;

Multiply by 9/13;

Expand and there you are! (Smile) - Oct 26th 2010, 02:19 AMxEnOn
wow! That's a nice trick! Thanks man! :D

- Oct 26th 2010, 06:29 AMUnknown008
You're welcome (Happy)