matrices

2008-03-13 4:47 pm
Determine whether the following pairs of matrices are equivalent.
i)
1 3 -2
-1 1 -2
0 -1 1

and

0 1 -2
-2 -1 0
1 0 -1

ii)
1 -1 -2 2
-2 -1 1 -3
-1 -5 -4 0

and

0 1 2 -1
1 0 -1 -2
-1 1 3 1

回答 (1)

2008-03-13 5:22 pm
✔ 最佳答案
first two are not equivalent , since the determinant of the first one is 0 and the second is 4

the last two are equiavlent , since after changing them to echelon form , they have same rank and hence they are equivalent


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