Teaching UP TGT Mock Test Series 2025 Mathematics Differential Calculus

यदि \(y=\frac{1-x}{1+x}\) हो तो \(\rm \frac{dy}{dx}\) किसके बराबर है?

1
\(\frac{-2}{(1-x)^2}\)
2
\(\frac{-2}{(1+x)^2}\)
3
\(\frac{2}{(1+x)^2}\)
4
\(\frac{2}{(1-x)^2}\)
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