Question

resolva as equações trigonométricas

a) cos x = 0

B) sem x = 1

C) cos (x+π/2) = 1/2

D) sem (x=π ) =√3/2

Answer 1

a) 90° ou 270°
b) 90°
c) x+pi/2= 60°
d) x?pi= 60°

Answer 2

a) 90°
b) 90°
c) 60°
d) 60°