Question

Find the value of each determinant

Answer 1

Answer:

−4304

Step-by-step explanation:

1. The given determinant is :

$\begin{vmatrix}7 &31 \\ 142& 14\end{vmatrix}$

We need to find its determinant . It can be solved as follows :

$\begin{vmatrix}7 &31 \\ 142& 14\end{vmatrix}=7(14)-142(31)\\\\=-4304$

So, the value of determinant is equal to −4304.