Tentukan 2√2cosx-√6=0 u/0°≤x≤360°

2V2 cos x - V6 = 0
2V2 cos x = V6
cos x = V6/(2V2)
cos x = 1/2 V3


Kuadran I
cos x = 1/2 V3
cos x = cos 30°
x = 30°

Kuadran IV
cos x = 1/2 V3
cos x = cos 330°
x = 330°

Jadi HPnya adalah {30° , 330°}