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

question 194

Multiple Choice

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

• A) 0
• B) \(\pi\)
• C) \(\frac { \pi } { 2 }\)
• D) \(- \pi\)

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Definitions:

Pressure

The force per unit area applied to an object in a direction perpendicular to the surface.

Eustress

A positive form of stress having a beneficial effect on health, motivation, performance, and emotional well-being.

Conflict

The psychological stress occurring when a person has to choose between different and incompatible or opposing goals.

Pressure

The force applied perpendicular to the surface of an object per unit area over which that force is distributed, often measured in units such as Pascal or psi.