If sin (5+67) = cos (-2x+11), what is the value of X

Answer 1

sin72 = cos18= cos(-2x+11)

18=-2x+11

2x = 11-18=-7

x =-7/2 = -3.5

cos(-2(-3.5)+11) = cos18 = sin(90-18) = sin 72 = sin(5+67)