Question

What’s the answer for this problem
A. 11
B. 5
C. -5

Answer 1

5

Explanation:

Given a matrix
`\left[\begin{array}{ccc}a&b&\\c&d&\\\end{array}\right]`

Then the determinant = ad - bc

For the matrix
`\left[\begin{array}{ccc}2&3&\\1&4&\\\end{array}\right]`

determinant = (2 × 4) - (3 × 1) = 8 - 3 = 5

Answer 2

your answer would be B. 5