If 1 2 (A-A^ +I ) ⁻¹= 2 [ array ccc -13 & - 3 & 3 -17 & 10 & -1 7 & -11 & 5 array ] for A= [ array ccc -2 & 3 & 4 5 & -4 & -3 7 & 2 & 9 array ] , then is :

Step-by-step solution

1 2 (A-A^ +I ) ⁻¹ for A= [ array ccc -2 & 3 & 4 5 & -4 & -3 7 & 2 & 9 array ] 1 2 (A-A^ +I )⁻¹= [ 1 2 [ array ccc 1 & -2 & -3 2 & 1 & -5 3 & 5 & 1 array ] ]⁻¹= ( 1 2 B )⁻¹ | 1 2 B |= 39 8 Adj B= 1 4 [ array ccc 26 & -17 & 7 -13 & 10 & -11 13 & -1 & 5 array ]^ = 1 4 [ array ccc 26 & -13 & 13 -17 & 10 & -1 7 & -11 & 5 array ] | 1 2 B⁻¹ |= 2 39 [ array ccc 26 & -13 & 13 -17 & 10 & -1 7 & -11 & 5 array ]