Use a Sum or Difference Identity to Find the Exact $\sin ( x + 2 \pi )$

question 27

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\sin ( x + 2 \pi )$

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

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