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cotangent

Noun

co=tan=gent

WORDNET DICTIONARY

cotangent(n = noun.linkdef) cotan - ratio of the adjacent to the opposite side of a right-angled triangle; Array

is a kind of circular function, trigonometric function

cotangent, n. [For co. tangens, an abbrev. of L. complementi tangens. See Tangent.].

The tangent of the complement of an arc or angle. See Illust. of Functions. [1913 Webster]

cotangent, n. Math. the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the opposite side.

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