(a) Show that (0, 0) is an isolated critical point of the plane autonomous system
Chapter 11, Problem 40(choose chapter or problem)
(a) Show that (0, 0) is an isolated critical point of the plane autonomous system Parametric equations for a folium are 3ct 3ct2 x' = x4 - 2xy3 y' = 2x3y - y4 x = 1 + t3' y = 1+t3 [Hint: The differential equation in x and y is homogeneous.] but that linearization gives no useful information about the nature of this critical point. (b) Use the phase-plane method to show thatx3 + y3 = 3cxy. This classic curve is called a folium of Descartes. (c) Use a graphing utility or a numerical solver to obtain solution curves. Based on your phase portrait, would you classify the critical point as stable or unstable? Would you classify the critical point as a node, saddle point, center, or spiral point? Explain.
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