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If xy = ex-y then dy/dx is equal to 

(1) ex/xx-y

(2) 1/y - 1/x-y

(3) log x/log (x -y)

(4) log x/(1+log x)2

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Correct option (4) log x/(1 log x)2

Explanation:

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asked Dec 3, 2019 in Mathematics by Kasis (48.8k points)

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