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cotangent
co·tan·gent [ kō tánjənt ] (plural co·tan·gents)


noun 
Definition:
 
ratio of adjacent to opposite side: for a given angle in a right triangle, a trigonometric function equal to the length of the side adjacent to the angle divided by that of the side opposite the angle

co·tan·gen·tial [ k tan jénsh'l ] adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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