Question

What is the determinant of the matrix [598−2]

Answer 1

-82

Explanation:

Maybe you want the determinant of ...

`\left[\begin{array}{cc}5&9\\8&-2\end{array}\right]`

The determinant of a 2×2 matrix is the difference of the products of elements on the down diagonal and the up diagonal:

D = (5)(-2) -(8)(9) = -10 -72 = -82

The determinant of this matrix is -82.