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Complete the Identity 1−12sin⁡(2θ)=?1 - \frac { 1 } { 2 } \sin ( 2 \theta ) = ?

Question 131

Multiple Choice

Complete the identity.
- 1−12sin⁡(2θ) =?1 - \frac { 1 } { 2 } \sin ( 2 \theta ) = ?


A) sin⁡θcos⁡(2θ) sin⁡θ+cos⁡θ\frac { \sin \theta \cos ( 2 \theta ) } { \sin \theta + \cos \theta }

B) sin⁡3θ+cos⁡3θsin⁡θ+cos⁡θ\frac { \sin ^ { 3 } \theta + \cos ^ { 3 } \theta } { \sin \theta + \cos \theta }

C) sin⁡3θ−cos⁡3θsin⁡θ+cos⁡θ\frac { \sin ^ { 3 } \theta - \cos ^ { 3 } \theta } { \sin \theta + \cos \theta }

D) sin⁡θcos⁡θcos⁡(2θ) sin⁡θ+cos⁡θ\frac { \sin \theta \cos \theta \cos ( 2 \theta ) } { \sin \theta + \cos \theta }

Correct Answer:

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