Thread: Integration By Parts

Use integration by parts to evaluate .

Any help is appreciated!

Is this supposed to be arccos(x)*2x? It appears that you only have one function in your post.

It seems as though it should be arccos(x)*2x, but I copied the problem as it was written in my homework. A hint my teacher said was to set and , if this helps.

Originally Posted by live_laugh_luv27

It seems as though it should be arccos(x)*2x, but I copied the problem as it was written in my homework. A hint my teacher said was to set and , if this helps.

This is what you're looking for



Of course with you having 2x instead of x it is slightly different (your derivative of U will have a 2 on top).

So it will actually become

xcos^-1 (x) - 2sqrt(1-x^2) + C