Question

Batu yah tolong banget nomer 1,3,4 pr buat besok

Answer 1

2 sin x + √3 = 0
2 sin x = -√3
sin x =
sin x = sin 240
x = 240 + k.360
k = 0 => x = 240
atau
x = (180 - 240) + k.360
x = -60 + k.360
k = 0 ==> x = -60 (tdk memenuhi)
k = 1 ==> x = 300
Hp = {240, 300}