Question
In Exercises $1-10,$ find the dimensions of the given matrix, and identify the given entry.$$ \text { 4. } D=\left|\begin{array}{rr} 15 & -18 \\ 6 & 0 \\ -6 & 5 \\ 48 & 18 \end{array}\right| ; d_{31} $$
Step 1
In the given matrix, there are 4 rows and 2 columns. Therefore, the dimension of the matrix is $4 \times 2$. Show more…
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