berapa sii cos 75 derajat

Cos 75° = cos (45+30)
= cos 45° x cos 30° - sin 45° x sin 30°
= 1/2 akar 2 x 1/2 akar 3 - 1/2 akar 2 x 1/2
= 1/4 akar 6 - 1/4akar 2
Semoga membantu

75
---- x 360 = 7,5 x 360 = 2700
10