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Complete the Identity cos2xsin2x1tan2x=?\frac { \cos ^ { 2 } x - \sin ^ { 2 } x } { 1 - \tan ^ { 2 } x } = ?

Question 45

Multiple Choice

Complete the identity.
- cos2xsin2x1tan2x=?\frac { \cos ^ { 2 } x - \sin ^ { 2 } x } { 1 - \tan ^ { 2 } x } = ?


A) cos2x\cos ^ { 2 } x
B) sin2x\sin ^ { 2 } x
C) 1
D) 1- 1

Correct Answer:

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