then A2 - 6A =
3 I
5 I
-5 I
-3 I
Which of the following is correct?
Skew symmetric matrix of even order is always singular.
Skew symmetric matrix of odd order is non-singular
skew symmetric matrix of odd order is singular
None of the above
then the values of x, y, z, w are ________.
2, 2, 3, 4
2, 3, 1, 2
3, 3, 0, 1
None of these
A2 = A
B2= B
AB ≠ BA
AB = BA
If A = ( aij ) 2 x 2 where aij = i + j, then A = ___________.
All diagonal elements of skew symmetric matrix are
distinct
0
1
Some zero and some non-zero
A2-B2
A2+B2
A2-B2+BA+AB
A2-B2-AB+BA
