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f(x)= x^(3) + ax^(2) + bx + c is real v...

`f(x)= x^(3) + ax^(2) + bx + c` is real valued function in which a, b and c are selected by tossing one baised dice twice. Then ......... is the probability for f(x) becomes an increasing function.

A

`(4)/(9)`

B

`(3)/(8)`

C

`(2)/(5)`

D

`(16)/(34)`

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A
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