## EnglishEdit

### NounEdit

**trigonometric cofunction** (*plural* **trigonometric cofunctions**)

- (mathematics) Any of a pair of trigonometric functions that have equal values when their arguments are complementary angles e.g. sine and cosine

Last modified on 18 June 2013, at 14:07
## EnglishEdit

### NounEdit

**trigonometric cofunction** (*plural* **trigonometric cofunctions**)

- (mathematics) Any of a pair of trigonometric functions that have equal values when their arguments are complementary angles e.g. sine and cosine