`[(1+cos(pi/8)+isin(pi/8))/(1+cos(pi/8)-sin(pi/8))]^8=?` HD

To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW `[(1+cos(pi/8)+isin(pi/8))/(1+cos(pi/8)-sin(pi/8))]^8=?`