Thread: Problems with an Integral

I have trouble solving this. I know that i have to integrate by parts, but somehow i always get the wrong answer.... I put it into Wolframalpha, but im having a hard time following its solution

any help would be appreciated

Originally Posted by coobe

I have trouble solving this. I know that i have to integrate by parts, but somehow i always get the wrong answer.... I put it into Wolframalpha, but im having a hard time following its solution

any help would be appreciated

tabular integration ...

Code:

.............. u ........... dv

+ .............x^2 ........ cos(mx)

- ............ 2x ..........(1/m)sin(mx)

+ ............. 2 ......... -(1/m^2)cos(mx)

- ............. 0 ...........-(1/m^3)sin(mx)