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Complete the Identity sin4xcos4x=\sin ^ { 4 } x - \cos ^ { 4 } x =

Question 86

Multiple Choice

Complete the identity.
- sin4xcos4x=\sin ^ { 4 } x - \cos ^ { 4 } x = ?


A) 12cos2x1 - 2 \cos ^ { 2 } x
B) 1+2cos2x1 + 2 \cos ^ { 2 } x
C) 1+2sin2x1 + 2 \sin ^ { 2 } x
D) 12sin2x1 - 2 \sin ^ { 2 } x

Correct Answer:

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