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categoryرياضيات
schoolبكالوريوس
event_available2026-07-14
السؤال
Transcribed Image Text:
(6 points) In MATH225, we learned that systems of linear, ordinary, homogeneous,
constant-coefficient differential equations can be solved by finding the eigenvalues and
eigenvectors of the system's coefficient matrix. As a reminder, consider the system:
y₁(t)=3y1-2y2
y2(t) = -y1 +4y2
3
The coefficient matrix for this system is A
=
The eigenvalues for this
-1 4
matrix are A₁ = 2 and 2 = 5. The corresponding eigenvectors are v₁ =
V2=
0.7071
-0.7071
The general solution ot the system is
-0.8944
0.7071
y(t) = c₁
e2t+Cz
est
-0.4472
-0.7071
-0.8944
and
-0.4472
What we learned in MATH225 about small linear systems generalizes to larger linear sys-
tems. Using MATLAB to find the eigenvalues and eigenvectors, find the general solution
of the following system of three differential equations:
y(t)=-2y1-4y2 +2y3
2(t)=-2y1+2+2y3
y(t)=4y1+2y2 +5y3
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