Question

If the angles are represented in degrees, find both angles:
cos(5x+2)=sin(11x+8)

Answer 1

27,63

Explanation:

sin (90-x)=cos x

90-x+x=90

cos (5x+2)=sin (11x+8)

5x+2+11x+8=90

16x+10=90

16x=90-10=80

x=80/16=5

5x+2=5*5+2=27

11x+8=11*5+8=63

also 27+63=90