- #1
vikcool812
- 13
- 0
Does the second derivative test fail for x3 at x=0:
f'(x)=3x2 f''(x)=6x ,
for x=0,
f'(0)=0 & f''(0)=+ve ,
so it should be a point of local maxima , but it is not!
f'(x)=3x2 f''(x)=6x ,
for x=0,
f'(0)=0 & f''(0)=+ve ,
so it should be a point of local maxima , but it is not!