Question: In Problems 1 through 4, show that the given system is almost linear with (0 , 0) as a critical point, and classify this critical

In Problems 1 through 4, show that the given system is almost linear with (0 , 0) as a critical point, and classify this critical point as to type and stability. Use a computer system or graphing calculator to construct a phase plane portrait that illustrates your conclusion.

dx dt = sin x cos y - 2y, dy dt =

dx dt = sin x cos y - 2y, dy dt = 4x 3 cos x sin y -

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