Write in terms of the cofunction of a complementary angle.
-$\sin 76 ^ { \circ }$
A) $\cos 104 ^ { \circ }$
B) $\csc 14 ^ { \circ }$
C) $\cos 14 ^ { \circ }$
D) $\csc 104 ^ { \circ }$

Question

Quizplus · Accepted Answer

The sine of an angle is equal to the cosine of its complementary angle. Since the complementary angle to 76 degrees is 14 degrees (because 90 - 76 = 14), $\sin 76^\circ = \cos 14^\circ$.

Write in Terms of the Cofunction of a Complementary Angle sin⁡76∘\sin 76 ^ { \circ }sin76∘

Write in Terms of the Cofunction of a Complementary Angle $\sin 76 ^ { \circ }$