kay I am having difficulties with this..(adsbygoogle = window.adsbygoogle || []).push({});

Knowing the gerneral formuala of

|uv'=uv- |vu'

i using a nonehomework question i was trying to make sure i had it down pat was having problems..

| x cos 5x dx

but for some reason i don't get the right answer when it done...

If I have u=x, du=1

and

v'=cos 5x dx

v= 1/5 sin5x??? or did i crew up some where I been having trouble here ..

so i can do the substion and all but this stuff is screwing with help plz.

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# Intergration by parts

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