If x y = e x–y , then dy dx is equal to
Mathematics · JEE Main · NTA Exams — Limit, Continuity and Differentiability
If xy = ex–y, then \(\frac{\mathrm{dy}}{\mathrm{dx}}\) is equal to
- (1 + log x)–1
- (1 + log x)–2
- log x . (1 + log x)–2
- None of these
Answer
(C) l og x . (1 + l og x) –2
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