[17] For each of the following equations, find general solutions; ● solve the initial value problem with initial condition y(0) = −1, y′(0) = 2; • sketch the phase portrait, identify the type of each equilibrium, and determine the stability of each equilibrium. (a) 2y" +9y' + 4y = 0 (b) y" + 2y' - 8y = 0 (c) 4y" - 12y + 5y = 0

A: Mean()=12Standard deviation()=4

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