bantu jawab pake cara ya,besok di kumpulin

2 sin^2 x = 1
2 y^2 = 1 (sin x = y
y^2 = 1/2
y = √(1/2)
y = √1 / √2
y = 1 /√2
y = (1 / √2) * (√2/√2)
y = +- 1/2 √2
sin x = 1/2 √2
+ x = 45° & 135° = π/4 & 3/4π
- x = 225° & 315° = 5/4π & 7/4π

karena syaratnya
0 < x < π/2
dan π = 180°
maka π/2 = 90°

maka x = 45° = 1/4π