Solving the Preliminary Example

continued from last page...)

First let's create a plot of the numerical solution for x(t). This has been stored in the variable prelimx, so graphing it is a simple task. Since we'll be using this graph in combination with others later, let's name it prelimxplot, and color the graph red. The command we need would be:

prelimxplot=Plot[prelimx,{t,-2,2}, PlotStyle->RGBColor[1,0,0]]

Issue the command in Mathematica, and return here.

We'll now go look at what you should have gotten...

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