Cosine: Cosine (abbreviated as cos)[k? Usain]

Tangent: Tangent (tan)['t? ndnt]

Cotangent: Cotangent? Won't you? ndnt]

Cutting, cutting? nt]

co section:co secant(CSC)[' kau ' si:k？ nt]

Positive Vector: versine (abbreviated as Versin) ['v? :sain]

Cosine: the inverse cosine (vercos)['v? :s？ :d][k？ Usain]

(where the positive vector and the complementary vector are two discarded functions)