Using complex integration, evaluate the integral \[ I=\int _0^{2\pi }\frac {1}{1+\frac {1}{3}\cos \phi }\,d\phi . \]
Question
Math 6420 • PDE
Fall 1998 • Question 5
Question
Fall 1998 • Question 5
Using complex integration, evaluate the integral \[ I=\int _0^{2\pi }\frac {1}{1+\frac {1}{3}\cos \phi }\,d\phi . \]