Question

Find the angle measure that makes the statement true.

Sin 25° = Cos ____ °

Answer 1

65.

You simply have to put cos-1(sin(25))

Answer 2

sin 25° = cos 65°

Explanation:

We have trigonometric result

sin θ = cos (90 -θ)

Here we asked to convert Sin 25° in to cosine.

So,

sin 25° = cos (90 -25) = cos 65°

sin 25° = cos 65°