solve-find-the-value-of-x-and-y-between-0-and180-which-satisfy-the-simultaneous-eqn-sin-x-y-2-2-cos2x-1-2-

Question Number 171858 by Mikenice last updated on 21/Jun/22

s o l v e :

f i n d t h e v a l u e o f x a n d y b e t w e e n 0^{°} a n d 180^{°} w h i c h s a t i s f y t h e s i m u l t a n e o u s e q n

s i n (x + y) = \frac{\sqrt{2}}{2}

c o s 2 x = - \frac{1}{2}