Let a, b and c be non - zero real number...

Let a, b and c be non - zero real numbers such that ` int _(0)^(3) (3ax ^(2) + 2bx +c) dx = int _(1)^(3) (3ax^(2) + 2bx +c) dx` , then

`a+b+c=3`

`a+b+c=1`

`a+b+c=0`

`a+b+c=2`

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