1.

For the cubic function f(x)=2x^(3)+9x^(2)+12x+1 , which one of the following statement/statements hold good ?

Answer»

f(X) is non - monotonic
f(x) INCREASES in `(-oo,-2)uu(-1,oo)` and decreases in `(-2,-1)`
`f:RtoR` is bijective .
inflection point OCCURS at `x=-3//2`

ANSWER :A::B::D


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