Question

find the value of the following determinater
A=|3x-5|=3
​

Answer 1

Answer:

To work out the determinant of a 3×3 matrix:

Step-by-step explanation:

1 . Multiply a by the determinant of the 2×2 matrix that is not in a's row or column.

2 . Likewise for b, and for c.

3 . Sum them up, but remember the minus in front of the b.