For the function x4 – 5x2 + 4, which of the following conclusions is/are correct?
1
The minimum value on the interval [2, 3] is -1.3
2
The maximum value on the interval [2, 3] is 40
3
The minimum value on the interval [2, 3] is 0
4
The maximum value on the interval [2, 3] is 4