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For f(x)=x^(3)+bx^(2)+cx+d, if b^(2) gt ...

For `f(x)=x^(3)+bx^(2)+cx+d`, if `b^(2) gt 4c gt 0` and `b, c, d in R`, then f(x)

A

is strictly increasing

B

is strictly decreasing

C

has a local maxima

D

is bounded

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The correct Answer is:
C
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