Find the Exact Value of the Expression $\tan ^ { - 1 } ( 1 )$

question 274

Multiple Choice

Find the exact value of the expression.
- $\tan ^ { - 1 } ( 1 )$

• A) \(\frac { \pi } { 4 }\)
• B) \(\frac { 5 \pi } { 4 }\)
• C) \(\frac { 3 \pi } { 4 }\)
• D) \(\frac { 7 \pi } { 4 }\)

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Definitions:

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A neurotransmitter in the nervous system that plays an important role in muscle contraction, arousal, sleep, and memory.

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Intense episodes of fear that occur during sleep, typically in children, characterized by screaming, sweating, and confusion but little or no recall of the event upon awakening.

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Disturbing dreams that can cause feelings of fear, terror, or anxiety, often awakening the sleeper.

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The active ingredient in tobacco.