Let f(x)=a^x-xlna, a>1. Then the complet...

Let `f(x)=a^x-xlna`, a>1. Then the complete set of real values of x for which `f'(x)>0` is

A

`(1,oo)`

B

`(-1,oo)`

C

`(0,oo)`

D

`(0,1)`

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The correct Answer is:

C

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