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- January 30th 2008, 03:30 PMpolymeraseIntegral Multiplication

Thanks - January 30th 2008, 03:58 PMTrevorP
I think you first need to get rid of that square root by doing some substitution.

Try . It might not actually work out...but that 4th power has to be removed before you can replace that with just .

At least that's what I would try. You just shouldn't use integration by parts if it looks like you can still substitute. - January 30th 2008, 04:10 PMJhevon
- January 30th 2008, 04:42 PMKrizalid
Okay, this will be a mess. It takes lots of substitutions, but having patience makes sense.

First rewrite your integral

Substitute the integral becomes

Make another substitution according to the integral becomes

Now a final substitution defined by (We're gettin' close.)

Now this is easy, so we have

After back substitute we finally-happily get that

- January 30th 2008, 04:43 PMTrevorP

Now use integration by parts to solve that.

EDIT: Ok Krizalid already gave you his answer I guess I'll finish this.

- January 30th 2008, 04:45 PMJhevon
- January 30th 2008, 04:54 PMKrizalid