Determine the exact value of $\arctan ( - 1 )$.
A) $\frac { \pi } { 4 }$
B) $- \frac { \pi } { 2 }$
C) $- \frac { \pi } { 4 }$
D) 0
E) $\frac { \pi } { 2 }$

Name: Determine the exact value of $\arctan ( - 1 )$. A) $\frac { \pi } { 4 }$ B) $- \frac { \pi } { 2 }$ C) $- \frac { \pi } { 4 }$ D) 0 E) $\frac { \pi } { 2 }$
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Question

Quizplus · Accepted Answer

The arctan function finds the angle whose tangent is the given number. The tangent of $-\frac{\pi}{4}$ is -1, making $\arctan(-1) = -\frac{\pi}{4}$.

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Determine the Exact Value Of $\arctan ( - 1 )$
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