The set of values of a for which the fun...

The set of values of a for which the function
`f(x)=2e^x-ae^(-x)+(2a+1)x-3)` is increasing on R,is

A

`[0,oo)`

B

`(-alpha,0)`

C

`(-oo,oo)`

D

none of these

Verified by Experts

The correct Answer is:

A

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