bantuin dong yg F aja

sin π/3 = sin 180/3 = sin 60 = √3/2
cos π/6 = cos 180/6 = cos 30 = √3/3
2 sin π/3 cos π/6 = 2 (√3/2)(√3/2)
= 2.3 / 2.2
= 6/4
= 3/2

√(2 - 3/2) / (1 + 3/2)
= √(4/2-3/2) / (2/2+3/2)
= √(1/2) / (5/2)
= √(1/2) × (2/5)
= √1/5
= 1 / √5
= √5/5
= (1/5) √5