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Let f(x)=x^(3)-9x^(2)+30x+5 be a differ...

Let `f(x)=x^(3)-9x^(2)+30x+5` be a differentiable function of x , then -

A

f(x) is minimum at x =3

B

minimum value of f(x) is 8

C

minimum value of f(x) is greater than its maximum value

D

f(x) possesses neither a maximum nor a minimum .

Text Solution

Verified by Experts

The correct Answer is:
D
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