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1. For each of the following nonlinear systems, (a) Find all of the equilibrium points and describe the behavior of the assoc

x = sin x, y, = cos y (i)

1. For each of the following nonlinear systems, (a) Find all of the equilibrium points and describe the behavior of the associated linearized system. 185 Exercises (b) Describe the phase portrait for the nonlinear system (c) Does the linearized system accurately describe the local bchavior near the equilibrium points?
x' = sin x, y, = cos y (i)
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