If \( \sec \theta+\tan \theta=2 \), then find the value of \( \sin \theta \) (a) \( \frac{3}{5} ...

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If \( \sec \theta+\tan \theta=2 \), then find the value of \( \sin \theta \)
(a) \( \frac{3}{5} \)
(b) \( \frac{2}{5} \)
(c) \( -\frac{3}{5} \)
(d) \( -\frac{2}{5} \)
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