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If f(x) = x^(3) + bx^(2) + cx +d and 0lt...

If `f(x) = x^(3) + bx^(2) + cx +d` and `0lt b^(2) lt c`.then in `(-infty, infty)`

A

has no local minima

B

has no local maxima

C

is strictly increasing on R

D

is strictly decreasing on R

Text Solution

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The correct Answer is:
C
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