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.
Mathematics · High School · Thu Feb 04 2021
llm
Answered on
Here, option (C) is correct.
According to trigonometric identities, The sine of an angle is equal to the cosine of the angle's complement.