Given $\tan \theta \sec \theta = 1,$ find
\[\frac{1 + \sin \theta}{1 - \sin \theta} - \frac{1 - \sin \theta}{1 + \sin \theta}.\]
Question:
Given $\tan \theta \sec \theta = 1,$ find
\[\frac{1 + \sin \theta}{1 - \sin \theta} - \frac{1 - \sin \theta}{1 + \sin \theta}.\]
Answer:
Let's think step by step.

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4
Given $\tan \theta \sec \theta = 1,$ find
\[\frac{1 + \sin \theta}{1 - \sin \theta} - \frac{1 - \sin \theta}{1 + \sin \theta}.\]
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