1) Classify the equilibrium of y' = Ay at the origin and determine if it is asymptotically stable, stable, or unstable. Also sketch a phase plane portrait for each of the following matrices. %3D d) A = . det(A – Al) = ['71 º]= (1 – 2)(-4 – 2) – 0 = - (1- λ) (-4 - λ)-0= PA(1) = 2² + 31 – 4 (1 + 4)(2 – 1) 11 – 4, 12 = 1 Since this matrix has positive real eigenvalues the trivial solution y' = Ay is unstable.

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Chapter2: Second-order Linear Odes
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ODE: I need help drawing rough phase plane by hand. I solved for eigenvsalues, etc. Thanks

1) Classify the equilibrium of y' = Ay at the origin and determine if it is asymptotically stable, stable,
or unstable. Also sketch a phase plane portrait for each of the following matrices.
d) A = [6
det(A – A1) = [1,?
– 1
-4- al = (1 – 2)(-4 – 2) – 0 =
-
PA(1) = 2² + 31 – 4
(1 + 4)(1 – 1)
λ-4, λ 1
Since this matrix has positive real eigenvalues the trivial solution y' = Ay is unstable.
Transcribed Image Text:1) Classify the equilibrium of y' = Ay at the origin and determine if it is asymptotically stable, stable, or unstable. Also sketch a phase plane portrait for each of the following matrices. d) A = [6 det(A – A1) = [1,? – 1 -4- al = (1 – 2)(-4 – 2) – 0 = - PA(1) = 2² + 31 – 4 (1 + 4)(1 – 1) λ-4, λ 1 Since this matrix has positive real eigenvalues the trivial solution y' = Ay is unstable.
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