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If f(x)=x^3 + ax^2 + bx+c is minimum a...

If `f(x)=x^3 + ax^2 + bx+c ` is minimum at ` x = 3 `and maximum at ` x = -1, ` then-

A

`a = -3 , b = -9 , c = 0`

B

`a= 3 , b = 9 , c = 0`

C

`a = -3 , b = -9 , c in R`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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