cofunction

noun
co·​func·​tion | \ ˈkō-ˌfəŋ(k)-shən How to pronounce cofunction (audio) \

Definition of cofunction

: a trigonometric function whose value for the complement of an angle is equal to the value of a given trigonometric function of the angle itself the sine is the cofunction of the cosine

First Known Use of cofunction

1909, in the meaning defined above

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The first known use of cofunction was in 1909

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Cite this Entry

“Cofunction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cofunction. Accessed 22 Feb. 2020.

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