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

Question 311

Multiple Choice

Use identities to write the expression as a single function of x or θ\theta
- sin⁡(360∘+x) \sin \left( 360 ^ { \circ } + x \right)


A) −cos⁡x- \cos x
B) sin⁡x\sin x
C) 22cos⁡x−22sin⁡x\frac { \sqrt { 2 } } { 2 } \cos x - \frac { \sqrt { 2 } } { 2 } \sin x
D) 22cos⁡x+22sin⁡x\frac { \sqrt { 2 } } { 2 } \cos x + \frac { \sqrt { 2 } } { 2 } \sin x

Correct Answer:

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