For what is the value of the determinant 
?
We need to find the value of determinant,
Determinant of 3 × 3 matrices is found as,
Similarly,
Thus, the value of 
is 8.
1
For what is the value of the determinant ?
We need to find the value of determinant,
Determinant of 3 × 3 matrices is found as,
Similarly,
Thus, the value of is 8.