Simplify
\[\frac{\sin x + \sin 2x}{1 + \cos x + \cos 2x}.\]
Question:
Simplify
\[\frac{\sin x + \sin 2x}{1 + \cos x + \cos 2x}.\]
Answer:
Let's think step by step.

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