Question

Diketahui cos A = p/2. Hitunglah sin A , tan A , sec A, cosec A, dan cotan A !

Answer 1

Cos = x/r = p/2  jadi x = p , r = 2 , y = √4-p²

sin A = y/r =√4-p²/2
tan A = y/x = √4-p²/p
sec A = r/x = 2/p
cotan A = x/y = p/√4-p²
cosec A = r/y = 2/√4-p²