Find the Exact Value of Each Expression, If It Is $\sin ^ { - 1 } ( - 2 )$

question 81

Short Answer

Find the exact value of each expression, if it is defined
a) $\sin ^ { - 1 } ( - 2 )$

b) $\cos ^ { - 1 } ( - \sqrt { 3 } )$ c) $\tan ^ { - 1 } ( - 1 )$

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Definitions:

Insight

The capacity to gain an accurate and deep intuitive understanding of a person or thing, often leading to a creative problem-solving moment.

Neurofeedback

A type of biofeedback that uses real-time displays of brain activity, typically through EEG, to teach self-regulation of brain function.

EEG

Electroencephalogram, a non-invasive method to record electrical activity of the brain through electrodes placed on the scalp, used in the diagnosis and study of neurological disorders.

Attention Problems

Challenges in maintaining focus on tasks or activities, leading to difficulties in learning and task completion.