11th
Sine (sin) y
Definition: Opposite side divided by hypotenuse in a right triangle.
opp/hyp
Cosine (cos) x
Definition: Adjacent side divided by hypotenuse in a right triangle.
adj/hyp
Tangent (tan) y/x
Definition: Opposite side divided by adjacent side in a right triangle.
opp/adj
Cosecant (csc) 1/y
Definition: Reciprocal of sine.
hyp/opp
Secant (sec) 1/x
Definition: Reciprocal of cosine.
hyp/adj
Cotangent (cot) x/y
Definition: Reciprocal of tangent.
adj/opp