Choose the one alternative that best completes the statement or answers the question.
Complete the identity.
-$$\sin ( \pi - \theta ) = \text { ? }$$
A) $\sin \theta$
B) $\cos \theta$
C) $- \cos \theta$
D) $- \sin \theta$

Question

Quizplus · Accepted Answer

The identity $\sin(\pi - \theta) = \sin \theta$ is based on the symmetry of the sine function with respect to the y-axis in the unit circle representation. This identity reflects the fact that the sine of an angle and its supplement (in radians) are equal.

Choose the One Alternative That Best Completes the Statement or Answers