Find the exact value. Do not use a calculator.
-$\cos \frac { 3 \pi } { 2 }$
A) 1
B) -1
C) 0
D) undefined

Name: Find the exact value. Do not use a calculator. -$\cos \frac { 3 \pi } { 2 }$ A) 1 B) -1 C) 0 D) undefined
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Question

Quizplus · Accepted Answer

The cosine of $\frac{3\pi}{2}$ is 0 because at this angle, the point on the unit circle is at (0, -1), meaning its x-coordinate (which represents the cosine value) is 0.

Find the Exact Value cos⁡3π2\cos \frac { 3 \pi } { 2 }cos23π​

Find the Exact Value $\cos \frac { 3 \pi } { 2 }$