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যদি

y = x^{\frac{- 1}{x}}

\frac{d y}{d x}

এর মান হবে।

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

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

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

x^{2 - \frac{1}{2}} (1 - \log x)

ANS : 2

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