Problem

(1 point) Find a set of vectors $\{\vec{u}, \vec{v}\}$ in $\mathbb{R}^{4}$ that spans the solution set of the equations \[ \left.\begin{array}{c} \left\{\begin{array}{r} w-x-y-3 z=0 \\ w+2 x-y+2 z=0 \end{array}\right. \\ \vec{u}=\left[\begin{array}{l} \square \\ \square \end{array}\right] \\ \square \end{array}\right] \] (The components of these vectors appear in alphabetical order: $(w, x, y, z))$.

Solution

Step 1 :Given the system of equations: \(w-x-y-3z=0\) and \(w+2x-y+2z=0\)

Step 2 :We can solve this system of equations to find the solution set in terms of \(w\), \(x\), \(y\), and \(z\)

Step 3 :By solving, we find that the solution set can be expressed as a linear combination of the vectors \(\vec{u} = \begin{bmatrix} 1 \ 0 \ 1 \ 0 \end{bmatrix}\) and \(\vec{v} = \begin{bmatrix} \frac{1}{3} \ -\frac{5}{3} \ 0 \ 1 \end{bmatrix}\)

Step 4 :Thus, the set of vectors that spans the solution set is \(\boxed{\left\{\begin{bmatrix} 1 \ 0 \ 1 \ 0 \end{bmatrix}, \begin{bmatrix} \frac{1}{3} \ -\frac{5}{3} \ 0 \ 1 \end{bmatrix}\right\}}\)

From Solvely APP
Source: https://solvelyapp.com/problems/f4qxmLyAcB/

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