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if m and M are the smallest and greatest values of a function f(x)defined on an interval [a,b] then `m(b-a)leint_a^bf(x)dxleM(b-a)`,Again(i) `f(x)ge0 on[a,b]implies int_a^bf(x)dxge0`
`f(x)leg(x),`f(x)leg(x) on[a,b]impliesint_a^bf(x)dxleint_a^bg(x)dx,
`aleint_0^1e^(x^2)dxleb `then (a,b)is

A

`(1,e^2)`

B

(1,e)

C

`(e^(-1),e)`

D

`(e,e^2)`

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