EMC Q.9
0. The function f(x) = 3x(x - 2) has a
- Option : A
- Explanation : f(x) = 3x (x - 2) = 3x2 - 6x
Differentiating, we get
Again diferentiating, 
For maxima or minima, - f '(x) =0
∴ 6x-6=0 ⇒ x=1
As f '(x) =6 >0 then f(x) is minimum at x=1
