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The first row is 0,0,0,1, the second row is 0,0,1,1, the third row is 0,1,1,1, the fourth row is 1,1,1,1. Using the elementary row transformation method to find the inverse matrix of the invertible matrix, we need to calculate the whole process I hope you can help me,
1. 0 0 0 1—1 0 0 0
0 0 1 1—0 1 0 0
0 1 1 1—0 0 1 0
1 1 1 1—0 0 0 1
2. 1 1 1 1—0 0 0 1
0 1 1 1—0 0 1 0
0 0 1 1—0 1 0 0
0 0 0 1—1 0 0 0
3.1 0 0 0—0 0 -1 1
0 1 0 0—0 -1 1 0
0 0 1 0—-1 1 0 0
0 0 0 1—1 0 0 0
4.0 0 -1 1
0 -1 1 0
-1 1 0 0
1 0 0 0
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