If A = , and A2 is an identity then x =
1
2
3
0
Then 3 A - 4 B =
The adjoint matrix of
If A is ( aij ) m × n and B = ( bjk ) m × p, then order of AB is
m × n
m × p
p × m
5 A
10 A
16 A
32 A
The matrix
Unitary
Orthogonal
nil potent
involutory
