Question

Evaluate the determinant for the following matrix: [-5 1, 1 4]

Answer 1

Answer: -24

Explanation:

Answer 2

The matrix given is
`\left[\begin{array}{ccc}-5&1\\1&4\end{array}\right]`

To find determinant
`\left[\begin{array}{ccc}a&b\\c&d\end{array}\right]` we do
`ad-bc`

So, the determinant of the given matrix is

`(-5)(4)-(1)(4) = -20 - 4 = -24`