If any two rows or any two columns are identical or proportional,then value of determinant is _______ .
1
2
3
0
If elements of a row (or column)are multiplied with cofactors of any other row (or column),then their sum is
Positive
Negative
Zero
None of these
Evaluate
16
18
20
22
4
6
8
a
a11
a12
A square matrix A is said to be singular if |A|= _____ .
cosθ
If any two rows or any two columns are identical or proportional, then value of determinant is ____.
If |A| ≠ 0, then that square matrix is called
Singular matrix
Identity matrix
Zero matrix
Non singular matrix
A is orthogonal if AAT =
A
I
A-1
|A|I
