Systerms : system terms : Cosine

A (41) | B (23) | C (62) | D (45) | E (33) | F (34) | G (18) | H (16) | I (28) | J (2) | K (5) | L (14) | M (29) | N (17) | O (10) | P (62) | Q (10) | R (41) | S (74) | T (31) | U (12) | V (12) | W (8) | X (1) | Y (2) | Z (2)

Cosine is a type of trigonometric function in math. Simply put, in a right triangle, it's the ratio of the length of a sharp angle's adjacent side to the length of the hypotenuse.

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