Diketahui sin A = 3/5 dan cos B = 12/13, A dan B sudut lancip nilai tan ( A - B ) adalah... Tolong pakai caranya

Sin A = depan/miring = 3/5
Tan A = depan/samping = 3/4

Cos B = samping/miring = 12/13
Tan B = depan/samping = 5/13

Tan (A-B) = tan A - tan B/1 + tan A tan B = 3/4 - 5/13 / 1 + 3/4.5/13 = 19/67
Sudut lancip = Kuadran 1 artinya semua bernilai positig