Simplify
\[\frac{\cos x}{1 - \sin x} - \frac{\cos x}{1 + \sin x}.\]
Question:
Simplify
\[\frac{\cos x}{1 - \sin x} - \frac{\cos x}{1 + \sin x}.\]
Answer:
Let's think step by step.

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2 \tan x
Simplify
\[\frac{\cos x}{1 - \sin x} - \frac{\cos x}{1 + \sin x}.\]
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