, then the value of x, y and z are respectively
5,2,2
1, -2,3
0, -3, 3
-11, 8, 3
The inverse of is ___________.
Does not exist
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
If f(x) = x^{2} - 5 x , A = , then f(A) is equal to
Inverse of is.
and A^{2} is the identity matrix, then x is equal to
-1
0
1
2
If A and B are square matrices of the same order such that (A+B) (A-B) = A^{2} - B^{2}, then (ABA^{-1})^{2} is equal to
B^{2}
I
A^{2}B^{2}
A^{2}
The inverse of is.
Does not exit
2 Δ
3 Δ
6 Δ
-2
-4
4