[ koh-fuhngk-shuhn ]
/ ˈkoʊˌfʌŋk ʃən /
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the function of the complement of a given angle or arc: cosθ is the cofunction of sinθ.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Scientific definitions for cofunction
[ kō′fŭngk′shən ]
The trigonometric function of the complement of an angle. The tangent, for example, is the cofunction of the cotangent.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.