The following graph uses the window 5 x 5, 1.6 y 0.6.
Graph of f(x) = 1/x 1/x2
The extrema are:
Local maximum at (5, 6/25) Absolute maximum at (2, 1/4) Local minimum at (5, 4/25)
5 
x 5, 1.6 y 0.6.
5 x 5, 1.6 y 0.6.
1/x25, 6/25)