All the values of a for which int1^2 [a^...

All the values of `a` for which `int_1^2 [a^2+(4-4a)x+4x^3]dxle12` are given by (A) `a=3` (B) `ale4` (C) `0lealt3` (D) none of these

A

`a=3`

B

`a le 4`

C

`0 le a lt 3`

D

None of these

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