Definitions for cosines

• Definition
• Anagrams (157)

cosines co·sine

Spelling: [koh-sahyn]

IPA: /ˈkoʊ saɪn/

Cosines is a 7 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 10 points.

You can make 157 anagrams from letters in cosines (ceinoss).

Definitions for cosines

noun

1. Trigonometry. (in a right triangle) the ratio of the side adjacent to a given angle to the hypotenuse. the sine of the complement of a given angle or arc. Abbreviation: cos.
2. Mathematics. (of a real or complex number x) the function cos x defined by the infinite series 1 − (x 2 /2!) + (x 4 /4!) − + …, where ! denotes factorial. Abbreviation: cos. Compare sine (def 3), factorial (def 1).

Origin of cosines

1625-35; New Latin cosinus. See co-, sine

Examples for cosines

These are then respectively the sine and cosine of the angle α between the radius and one of the axes (O X).

Multiply this by the cosine of the angle and divide by the sine, and we shall get the value of the arc QY for the equator.

Nevertheless, I bear no grudge against the sine and the cosine, which I continue to hold in high esteem.

Like the functions sine and cosine, the elliptic functions have addition theorems, e.g.

Integrators were of three kinds: radius machines; cosine machines; tangent machines.

Here then was the sine of an arc which did not recognize equality in the cosine of its supplement.

The sine and the cosine I shall have occasion to employ in the latter part of my lecture.

And, seating himself beside Dirrik, he began to explain the mysteries of sine, cosine and tangent.