If \( \sin \theta=3 \sin (\theta+2 \alpha) \), then the value of \(...

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If \( \sin \theta=3 \sin (\theta+2 \alpha) \), then the value of \( \tan (\theta+\alpha)+2 \tan \alpha \) is:
\( \mathrm{P} \)
(A) 0
(B) 2
W
(C) 4
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