115k views
0 votes
Evaluate the determinant for the following matrix: [-5 1, 1 4]

2 Answers

6 votes

Answer: -24

Explanation:

User Sahil Sharma
by
7.0k points
1 vote
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
User Matthew Berman
by
8.5k points