Find the exact value. $\sin ( - 450 )$
A) $- 1$
B) $1$
C) $0$
D) $2$
E) $\text { undefined }$

Name: Find the exact value. $\sin ( - 450 )$ A) $- 1$ B) $1$ C) $0$ D) $2$ E) $\text { undefined }$
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Question

Quizplus · Accepted Answer

The period of the sine function is $2\pi$, so $\sin ( - 450 ) = \sin ( - 450 + 2\pi ) = \sin ( - 220 )$. The period of the sine function is also $360\degree$, so $\sin ( - 220 ) = \sin ( - 220 + 360 ) = \sin ( 140 )$. The sine of $140\degree$ is $- 1$.

Find the Exact Value sin⁡(−450)\sin ( - 450 )sin(−450) A) −1- 1−1

Find the Exact Value $\sin ( - 450 )$ A) $- 1$