Question

Find the determinant of the matrix 234 431 124

Answer 1

Step-by-step explanation:

matrix is

3x3 matrix

2 3 4

4 3 1

1 2 4

now Row first using row and column elimination

2(12-2) - 3(16-1) + 4(8-3)

2*10 - 3*15+ 5*4

20-45+20

40-45

-5 determinant is