The value of c in Lagrange's mean value ...

The value of c in Lagrange's mean value theorem for the function
`f(x)=log_ex` in the interval [1,3] is

A

(a) `2log_3e`

B

(b) `1/2log_e3`

C

(c) `log_3e`

D

(d) `log_e3`

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The correct Answer is:

A

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