elaster36
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Which statement is ALWAYS true? A) The sine of an angle is equal to the sine of the angle's complement. B) The cosine of an angle is equal to the sine of the angle's supplement. C) The sine of an angle is equal to the cosine of the angle's complement. D) The cosine of an angle is equal to the cosine of the angle's supplement.

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HandyMan133
I believe the answer is C

Using trigonometric identities, the correct answer is  C) The sine of an angle is equal to the cosine of the angle's complement.

What are trigonometric identities?

Trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined.

Part C) is correct, since, sin(x) = cos(90-x)

Learn more about trigonometric identities here:

https://brainly.com/question/12068045

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