Question

If a=cos2x+isin2x & b=cos2y+isin2y then find value of √ab + 1/√ab ​

Answer 1

$\cos(2x + i \sin(2x) ) ) + 1 \frac{ \cos(2x + \sin(2x {?}^{2} ) ) }{?$

Answer 2

Please see the attachment