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The set of value(s) of a for which the f...

The set of value(s) of `a` for which the function `f(x)=(a x^3)/3+(a+2)x^2+(a-1)x+2` possesses a negative point of inflection is

A

`(-oo,2)cup(0,oo)`

B

`{-4//5}`

C

(-2,0)

D

empty set

Text Solution

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The correct Answer is:
A
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