The value of m for which the function f(x) = , is differentiable at x = 1, is
0
1
2
does not exist
For the function f(x) = x2 - 6x + 8, , the value of x for which f'(x) vanishes, is
9/4
5/2
3
7/2
The greatest value of f(x) = (x + 1)1/3 - (x - 1)1/3 on [0, 1] is
1
2
3
1/3
B.
2