Question
Let $A$ be the given matrix. Use technology to calculate det $A$.$$\left[\begin{array}{rrr}17 & -4 & 3 \\11 & 5 & -15 \\7 & -9 & 23\end{array}\right]$$
Step 1
On a TI-84 Plus, this is done by pressing the "2nd" key, then the "Matrix" key. This brings up the matrix menu. We then navigate to the "Edit" menu and select the first matrix (denoted as [A]). Show more…
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