If , then is equal to: a) b) c)…

MATHEMATICS · Subjective · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

If y=1+1x21−1x2y=\frac{1+\frac{1}{x^{2}}}{1-\frac{1}{x^{2}}}, then dydx\frac{d y}{d x} is equal to: a) −4xx2−1\frac{-4 x}{x^{2}-1} b) 1−x24x\frac{1-x^{2}}{4 x} c) −4x(x2−1)2\frac{-4 x}{\left(x^{2}-1\right)^{2}} d) 4xx2−1\frac{4 x}{x^{2}-1}

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