1.Diketahui Cot a = -5/12 dan 90°

Matematika X SMA
→→ Trigonometri ←←

Rumus :
Sin A = Depan/Samping
Cos A = Sampin/Miring
Tan A = Depan/Samping
Cosec A = 1/Sin A = Miring/Depan
Secan A = 1/Cos A = Samping/Depan
Cotan A = 1/Tan A = Samping/Depan

1||

Cot A = -5/12

Samping = -5, Depan = 12

Tan A = -12/5
Sin A = 12/13
Cos A = -5/13
Secan A = -13/5
Cosec A = 13/12

2||

Sin A = -3/5
Depan = -3, miring = 5

Cos A = -4/5
Tan A = 3/4
Secan A = -5/4
Cosec A = -5/3
Cot A = 4/3