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Complete the Identity sin⁡θcos⁡3θ+sin⁡3θcos⁡θ=?\sin \theta \cos ^ { 3 } \theta + \sin ^ { 3 } \theta \cos \theta = ?

Question 395

Multiple Choice

Complete the identity.
- sin⁡θcos⁡3θ+sin⁡3θcos⁡θ=?\sin \theta \cos ^ { 3 } \theta + \sin ^ { 3 } \theta \cos \theta = ?


A) 12sin⁡(2θ) cos⁡(2θ) \frac { 1 } { 2 } \sin ( 2 \theta ) \cos ( 2 \theta )
B) 12sin⁡(2θ) \frac { 1 } { 2 } \sin ( 2 \theta )
C) 14sin⁡2(2θ) \frac { 1 } { 4 } \sin ^ { 2 } ( 2 \theta )
D) 16sin⁡(3θ) sin⁡(2θ) \frac { 1 } { 6 } \sin ( 3 \theta ) \sin ( 2 \theta )

Correct Answer:

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