August 15, 2015 Please check Residue theorem excercise Leave a comment Show $ \int_{-\infty}^{\infty}\frac{1}{x^4 – 2 cos 2 \theta + 1} \,dx = \frac{\pi}{2sin \theta} $ I know I want to use the residue theorem for $… Advertisements Share this:TwitterFacebookGoogleLike this:Like Loading... Related Posted by ronaldconnelly423.