Use Identities to Write the Expression as a Single Function $$\theta$$

question 480

Multiple Choice

Use identities to write the expression as a single function of x or $$\theta$$
- $$\sin \left( x - \frac { \pi } { 2 } \right)$$

• A) \(\frac { \sqrt { 2 } } { 2 } \cos x - \frac { \sqrt { 2 } } { 2 } \sin x\)
• B) \(\sin x\)
• C) \(- \cos x\)
• D) \(\frac { \sqrt { 2 } } { 2 } \cos x + \frac { \sqrt { 2 } } { 2 } \sin x\)

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