Find the range of values of a if f(x)=2e...

Find the range of values of `a` if `f(x)=2e^x-a e^(-x)+(2a+1)x-3` is monotonically increasing for all values of `xdot`

A

`a in (-oo, oo)`

B

`a in (-oo,0)`

C

`a in (0,oo)`

D

None of these

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The correct Answer is:

C

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