## anonymous 4 years ago $\int\limits_{-1/2}^{1/2} \cos(2\pi t) e^{-jwt} dt$ I just got this on test, but unfortunately i could not solve it, i used the integration by parts twice but i did not get the solution. help guys ?

1. Mr.Math

Call the given integral $$I$$, then after integrating twice by parts you will get two equations in two variables one of which is $$I$$. Solve for it.

2. anonymous

well, I did not think about this I think you are right, i will try to solve it again.

3. Mr.Math

Good luck.

4. anonymous

thanks bro, i appreciate it.