Simplify the Given Expression Algebraically $\cos \left( \frac { \pi } { 2 } + x \right)$

question 6

Multiple Choice

Simplify the given expression algebraically. $\cos \left( \frac { \pi } { 2 } + x \right)$

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

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