| Answer | Crossword Clue |
|---|---|
| haversine | one half the versed sine of a given angle or arc |
| coses | the sine of the complement of a given angle or arc |
| cosines | the sine of the complement of a given angle or arc |
| cosine | the sine of the complement of a given angle or arc |
| cos | the sine of the complement of a given angle or arc |
| cosec | the secant of the complement, or the reciprocal of the sine, of a given angle or arc |
