Whereas the graphs of x1(t) and x2(t) resemble those shown in Figs. 2.4.7 and 2.4.8, the g...

Whereas the graphs of x1(t) and x2(t) resemble those shown in Figs. 2.4.7 and 2.4.8, the graph of x3(f) exhibits damped oscillations like those illustrated in Fig. 2.4.9, but with a very long pseudoperiod. Nevertheless, show that for each fixed t > 0 it is true that

Conclude that on a given finite time interval the three solu­tions are in “practical” agreement if n is sufficiently large.