I am integrating by parts. I do not know what let u and v be. I am also stuck on the radical.

e^{sqre rt} 3s+9 ds

I want to let u = 3s+9 and v = e^rt x

can it be done or am i just lost?

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- Feb 25th 2009, 01:01 PMswensonm[SOLVED] Integration
I am integrating by parts. I do not know what let u and v be. I am also stuck on the radical.

e^{sqre rt} 3s+9 ds

I want to let u = 3s+9 and v = e^rt x

can it be done or am i just lost? - Feb 25th 2009, 03:02 PMskeeter

now do parts ... let and - Feb 25th 2009, 04:36 PMswensonm
Why did you solve for ds?

- Feb 25th 2009, 04:44 PMskeeter
because one cannot integrate a function of t w/respect to s.

- Feb 25th 2009, 06:55 PMswensonmThank You
Thanks skeeter. (Rofl)