Differentiation Question 19

Question: If $ y={e^{(1+{\log _{e}}x)}} $ , then the value of $ \frac{dy}{dx}= $

[MP PET 1996; Pb. CET 2001]

Options:

A) e

B) 1

C) 0

D) $ {\log _{e}}x{e^{{\log _{e}}ex}} $

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Answer:

Correct Answer: A

Solution:

$ y={e^{1+{\log _{e}}x}}=e^{1}.{e^{{\log _{e}}x}}=e.x\Rightarrow \frac{dy}{dx}=e $ .