what is the cofunction of sin 87?

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what is the cofunction of sin 87degrees?

Guest Dec 1, 2014

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Best Answer

The cofunction identity of sinΘ = cos (90-Θ)

So sin (87°) = cos(90-87)° = cos(3°)

CPhill Dec 1, 2014

CPhill · Answer 1 · 2014-12-01T09:04:04

The cofunction identity of sinΘ = cos (90-Θ)

So sin (87°) = cos(90-87)° = cos(3°)

Melody · Answer 2 · 2014-12-01T02:11:37

I have not heard it worded like this before.