If \( y=\int \frac{d x}{\left(1+x^{2}\right)^{3 / 2}} \) and \( y=0 \) when \( x=0 \), then valu...

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If \( y=\int \frac{d x}{\left(1+x^{2}\right)^{3 / 2}} \) and \( y=0 \) when \( x=0 \), then value of \( y \) when \( x=1 \), is:
(A) \( \sqrt{\frac{2}{3}} \)
(B) \( \sqrt{2} \)
(C) \( 3 \sqrt{2} \)
(D) \( \frac{1}{\sqrt{2}} \)
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