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      <text>7.3.2.6 Evaluating general determinants Key Point</text>
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      <text><![CDATA[<div class="HELM_keypoint">
<h4>Key Point</h4>
<h5>Evaluating General Determinants</h5>
<p>If \(A\) is an \(n\times n\) square matrix then: \(\displaystyle{\operatorname{det}(A) = \sum_{j=1}^{n}a_{ij}A_{ij}}\).</p>
In words: The determinant of a square matrix is obtained by multiplying each element
of row \(i\) by its corresponding cofactor and then adding these products together.<p></p></div>]]></text>
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