Question
Let $A$ be the given matrix. Use technology to calculate det $A$.$$\left[\begin{array}{rr}11 & -32 \\1.2 & 55\end{array}\right]$$
Step 1
To do this, we press the "second" button and then the "matrix" button. This will bring up the matrix menu. We then select "edit" and choose a matrix to edit (in this case, matrix A). We input the dimensions of our matrix (2 by 2) and then input each element of the Show more…
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