cofunction

noun
co·func·tion | \ˈkō-ˌfəŋ(k)-shən \

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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Dictionary Entries near cofunction

cofradia

C of S

coft

cofunction

cog

cog and round

cogency

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The first known use of cofunction was in 1909

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