Inverse of is.
, then A3 - 4A2 + 3 A + I =
3 I
I
-I
-2I
and I is the unit matrix of order 2, then A2 equals
4 A - 3 I
3 A - 4 I
A- I
A + I
a ( x + y + z )
0
abc + xyz + pqr
a ( x + y + z ) + b ( p + q + r ) + c
In a system of 3 linear non- homogenous equation with three unknowns if Δ = 0, Δx = 0 and Δ2 = 0, then the system has
Unique system
Two solutions
Infinitely many solution
No solution
The rank of the matrix is
1
2
3
4
If the equati on - 2x + y + z = l, x - 2 y + 2 = m, x + y - 2z = n such that l + m + n = 0, then the system has.
a non zero unique solution
trivial solution
infinitely many solution
no solution
, then UV + XY =
[20]
20
[-20]
-20
, then trace of matrix A is
17
25
12
then B is