If A is a square matrix, A' is its transpose, then 1/2 ( A-A' ) is
a symmetric matrix
skew symmetric matrix
a unit matrix
an elementary matrix
, then the value of x, y and z are respectively
5,2,2
1, -2,3
0, -3, 3
-11, 8, 3
If A and B are any two matrices that AB = 0 and A is non- singular, then_________________.
B = 0
B is singular
B is non singular
B =A
then B is
If A and B are square matrices of size n × n such that A2 - B2 = (A-B) (A+B), then which of the following will be always ttrue?
Either A or B is a zero matrix
Either of A or B is an identity matrix
AB = BA
A = B
A is orthogonal if AAT =
A
I
A-1
|A|I
If A is an invertible matrix of order n, then the determinant of adj (A) is equal to
|A|n
|A|n+1
|A|n-1
|A|n+2
Inverse of is.
for x ≠ 0, y ≠ 0, then D is
divisible by neither x nor y
divisible by x but not y
divisible by y but not x
divisible by both x and y
If ,then x is equal to
6
-6
0
