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Evaluate int0^2e^2dx...

Evaluate `int_0^2e^2dx`

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We know that `int_a^b(f(x))dx=lim_(h_>0)h[f(a)+f(a+h)+..........+f(a+(h-1)h)]`
Where `h=(b-a)/2`
Here `a=0` and `b=2` `f(x)=e^x` and `h=(2-0)/h`
`:.int_0^2(e^x)dx=lim_(h->0)h[f(0)+f(h)+f(2h)+....+f(n-1)h]`
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