Prove that the function are increasing f...

Prove that the function are increasing for the given intervals: `f(x)=e^x+sinx ,x in R^+`

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The correct Answer is:

(i) Hence f(x) is increasing.
(ii) Hence f(x) is increasing i `(0,pi/2)`
(iii) Hence f(x) would be increasing for all real values of x.

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