Find the general solution to the following 3-by-3 linear system: 1 -5 10 2 -4 8 X. dt 3 -5 8.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Find the general solution to the following 3-by-3 linear system:

\[
\frac{d\vec{x}}{dt} = 
\begin{bmatrix}
1 & -5 & 10 \\
2 & -4 & 8 \\
3 & -5 & 8
\end{bmatrix} \vec{x}
\]

In this differential equation, \(\frac{d\vec{x}}{dt}\) represents the derivative of the vector \(\vec{x}\) with respect to time \(t\). The matrix multiplied by \(\vec{x}\) defines the system, with each row representing a linear equation involving the components of \(\vec{x}\).
Transcribed Image Text:Find the general solution to the following 3-by-3 linear system: \[ \frac{d\vec{x}}{dt} = \begin{bmatrix} 1 & -5 & 10 \\ 2 & -4 & 8 \\ 3 & -5 & 8 \end{bmatrix} \vec{x} \] In this differential equation, \(\frac{d\vec{x}}{dt}\) represents the derivative of the vector \(\vec{x}\) with respect to time \(t\). The matrix multiplied by \(\vec{x}\) defines the system, with each row representing a linear equation involving the components of \(\vec{x}\).
For the equation \( x'' + x^2 = 0 \):

a) Draw a tangent vector to a solution \( (x(t), x'(t)) \) in the phase plane \((x, x')\) at the point \((1, 2)\).

b) Is the solution with initial data \( x(0) = 1 \) and \( x'(0) = 2 \) increasing or decreasing? Is it concave up or down?
Transcribed Image Text:For the equation \( x'' + x^2 = 0 \): a) Draw a tangent vector to a solution \( (x(t), x'(t)) \) in the phase plane \((x, x')\) at the point \((1, 2)\). b) Is the solution with initial data \( x(0) = 1 \) and \( x'(0) = 2 \) increasing or decreasing? Is it concave up or down?
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