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Complete the Identity csc2θ2sec2θ2=?\csc ^ { 2 } \frac { \theta } { 2 } - \sec ^ { 2 } \frac { \theta } { 2 } = ?

Question 387

Multiple Choice

Complete the identity.
- csc2θ2sec2θ2=?\csc ^ { 2 } \frac { \theta } { 2 } - \sec ^ { 2 } \frac { \theta } { 2 } = ?


A) 2sin2θsecθ2 \sin ^ { 2 } \theta \sec \theta
B) 21secθ\frac { 2 } { 1 - \sec \theta }
C) 0
D) 4cotθcscθ4 \cot \theta \csc \theta

Correct Answer:

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