# What is the cofunction of sin 76° and the cofunction of csc 24°?

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### 1 Answer

For any acute angle A in standard position co-function of

`sin A=cos(90^o-A)`

`csc A=sec(90^o-A)`

Hence, cofunction of `sin 76^o=cos(90^o-76^o)=cos14^o`

cofunction of `csc 24°=sec(90^o-24^o)=sec66^o`

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