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

question 39

Multiple Choice

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

• A) \(\sin x\)
• B) \(- \sin x\)
• C) \(\cos x\)
• D) \(- \cos x\)
• E) 1

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