If \( |x| \leq 1 \), then \( 2 \tan ^{-1} x+\sin ^{-1}\left(\frac{2...

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If \( |x| \leq 1 \), then \( 2 \tan ^{-1} x+\sin ^{-1}\left(\frac{2 x}{1+x^{2}}\right) \) is equal to
\( \mathrm{P} \)
WV
(A) \( 4 \tan ^{-1} x \)
(B) 0
(C) \( \frac{\pi}{2} \)
(D) \( \pi \)
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