0004.qti

<item ident="G3-0004" title="G3 | Eigenvalues | ver. 0004">
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          <p>
            <strong>G3.</strong>
          </p>
          <p>Explain how to find the eigenvalues of the matrix <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" alt="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" title="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" data-latex="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]"/>.</p>
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      <mattext texttype="text/html">&lt;div class="exercise-statement"&gt;
  &lt;p&gt;
    &lt;strong&gt;G3.&lt;/strong&gt;
  &lt;/p&gt;
  &lt;p&gt;Explain how to find the eigenvalues of the matrix &lt;img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D%207%20&amp;amp;%201%20%5C%5C%20-18%20&amp;amp;%20-4%20%5Cend%7Barray%7D%5Cright%5D" alt="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]" title="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]" data-latex="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]"&gt;.&lt;/p&gt;
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            <h4>Partial Answer:</h4>
            <p>The characteristic polynomial of <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" alt="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" title="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" data-latex="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]"/> is <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?\lambda^{2} - 3 \lambda - 10" alt="\lambda^{2} - 3 \lambda - 10" title="\lambda^{2} - 3 \lambda - 10" data-latex="\lambda^{2} - 3 \lambda - 10"/>.</p>
            <p>The eigenvalues of <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" alt="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" title="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]" data-latex="\left[\begin{array}{cc} 7 &amp; 1 \\ -18 &amp; -4 \end{array}\right]"/> are <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?5" alt="5" title="5" data-latex="5"/> and <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?-2" alt="-2" title="-2" data-latex="-2"/>.</p>
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        <mattext texttype="text/html">&lt;div class="exercise-answer"&gt;
  &lt;h4&gt;Partial Answer:&lt;/h4&gt;
  &lt;p&gt;The characteristic polynomial of &lt;img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D%207%20&amp;amp;%201%20%5C%5C%20-18%20&amp;amp;%20-4%20%5Cend%7Barray%7D%5Cright%5D" alt="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]" title="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]" data-latex="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]"&gt; is &lt;img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?%5Clambda%5E%7B2%7D%20-%203%20%5Clambda%20-%2010" alt="\lambda^{2} - 3 \lambda - 10" title="\lambda^{2} - 3 \lambda - 10" data-latex="\lambda^{2} - 3 \lambda - 10"&gt;.&lt;/p&gt;
  &lt;p&gt;The eigenvalues of &lt;img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D%207%20&amp;amp;%201%20%5C%5C%20-18%20&amp;amp;%20-4%20%5Cend%7Barray%7D%5Cright%5D" alt="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]" title="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]" data-latex="\left[\begin{array}{cc} 7 &amp;amp; 1 \\ -18 &amp;amp; -4 \end{array}\right]"&gt; are &lt;img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?5" alt="5" title="5" data-latex="5"&gt; and &lt;img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?-2" alt="-2" title="-2" data-latex="-2"&gt;.&lt;/p&gt;
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