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Use a Sum or Difference Identity to Find the Exact sin⁡θ1+sin⁡θ−sin⁡θ1−sin⁡θ\frac { \sin \theta } { 1 + \sin \theta } - \frac { \sin \theta } { 1 - \sin \theta }

Question 141

Multiple Choice

Use a sum or difference identity to find the exact value.
- sin⁡θ1+sin⁡θ−sin⁡θ1−sin⁡θ\frac { \sin \theta } { 1 + \sin \theta } - \frac { \sin \theta } { 1 - \sin \theta }


A) sec⁡θcsc⁡θ\sec \theta \csc \theta
B) −2tan⁡2θ- 2 \tan ^ { 2 } \theta
C) 1+cot⁡θ1 + \cot \theta
D) sin⁡θtan⁡θ\sin \theta \tan \theta

Correct Answer:

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