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determine the rank of matrix!?
determine the rank of following matrix
plz step by step i need it urgent
1 -3 -1 0 -1 1 -2
0 1 1 -1 0 0 0
0 0 1 0 -1 -1 -1
0 0 0 1 1 0 1
0 0 0 -1 -1 0 -1
2 Answers
- MarkLv 71 decade agoFavorite Answer
If you add the next-to-the-last row to the last row, it makes the last row zeroes.
Thus the row rank is reduced by one and the other four rows are clearly independent (look at the triangularization) and so the row rank is 5 – 1 = 4
