A Level

MATHEMATICS · Single correct · A Level · Mathematics · Differentiation · Differentiation

Problem

If y=log⁡1+x1−xy = \log \frac{1+\sqrt{x}}{1-\sqrt{x}} , then dydx=\frac{dy}{dx} = (a) x1−x\frac{\sqrt{x}}{1-x} (b) 1x(1−x)\frac{1}{\sqrt{x}(1-x)} (c) x1+x\frac{\sqrt{x}}{1+x} (d) 1x(1+x)\frac{1}{\sqrt{x}(1+x)}

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