Question

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

Answer 1

Answer:

  -82

Step-by-step 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.