Question

Diketahui sin a = 6/12 tentukan perbandingan trigonometri

Answer 1

*Cara menghafal cepat:
'sindemi'   -> sin = depan/miring
'cosami'    -> cos = samping/miring
'tandesa'   -> tan = depan/samping

sin a = 6/12
sisi depan = 6
sisi miring = 12

sisi samping = akar(12 kuadrat - 6 kuadrat)
sisi samping = akar(144-36)
sisi samping = akar(108)
sisi samping = 6 akar(3)

cos a = samping/miring
cos a = 6 akar(3)/12
cos a = 1/2 akar (3)

tan a = depan/samping
tan a = 6/{6 akar(3)}
tan a = 1/akar(3)