Question

Tolong donggg bantuin no 25

Answer 1

2 sin^2 x - 7 sin x + 3 = 0
Misal sin x = a
2a^2 - 7a + 3 = 0
(2a - 1)(a - 3) = 0
a = 1/2 atau a = 3
Sin x = 1/2 atau sin x = 3
Karena - 1 ≤ sin x ≤ 1 maka yang kita ambil
Sin x = 1/2
Sin x = sin 30° => x = 30°
Tan x = Tan 30° = (1/3)√3