1.

A cubic f(x)=ax^(3)+bx^(2)+cx+d vanishes at x=-2 and has relative maximum/minimum at x=- 1 and x=1//3 if int_(-1)^(1)f(x)dx=(14)/(3) f(x) decreases in the interval

Answer»

`((-1)/(3),1)`
`((-1)/(3),-1)`
`(-1,(-1)/(3))`
`(1,(3)/(2))`

ANSWER :C


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