Matrix A is such that A2 = 2A - I, where I is unit matrix then for ∩≥ 2, A∩ =
∩A - (∩-1) I
∩A - I
2∩-1 A - (∩-1) I
2∩-1 A- I
For any 2 x 2 matrix A, if A ( Adj A ) = then |A| = ______.
0
10
20
100
3 × 1
1 × 1
1 × 3
3 × 3
If A = ( aij ) 2 x 2 where aij = i + j, then A = ___________.
A square matrix A is invertible iff det A is equal to ________.
1
non zero
-1
A square matrix A is singular if _______
| A | 0
| A | = 0
| A | = 1
| A | 1
2
If such that ad - bc 0, then A -1 is _______.
None of these
