Simplify the Given Expression Algebraically $\cos ( x - \pi )$

question 208

Multiple Choice

Simplify the given expression algebraically.
$\cos ( x - \pi )$

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Definitions:

Preventive Care

Medical services and practices that focus on disease prevention and health maintenance rather than treatment of symptoms or conditions.

Portable

Capable of being easily carried or moved, especially in reference to electronic devices or equipment.