Calculate the integral \[ \int _{-\infty }^{\infty }\frac {\cos x}{x^2+4}\,dx. \]
Question
Math 6210 • Real Analysis
Fall 2007 • Question 10
Question
Fall 2007 • Question 10
Calculate the integral \[ \int _{-\infty }^{\infty }\frac {\cos x}{x^2+4}\,dx. \]