Himpunan penyelesaian persamaan √3sin2x + 2coskuadratx = 1, adalah..

✓3Sin2x + 2Cos²x = 1
✓3Sin2x + 2Cos²x-1 = 0
✓3Sin2x + Cos2a = 0

k = ✓3+1 = ✓4 = 2
Tan A = ✓3 >>> kd I
A = 60°

k.Cos(x-A) = 0
2.Cos(x-60°) = 0
Cos(x-60°) = Cos 90°
X-60° = +- 90° + k. 360°
X= 60° +- 90° + k.360°
X1= 150°+k.360°
K=0 >>> x= 150° (m)

X2= -30°+k.360°
K=1 >>> x= 330° (m)

Jadi, Hp={150°, 330°}