Engineering
Mathematics
Introduction to Matrix
Inverse of a Matrix
Introduction to Determinants
Question
In applying one or more row operations while finding A–1 by elementary row operations, we obtain all zeroes in one or more, then A–1 ______.
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Solution
In applying one or more row operations while finding A–1 by elementary row operations, we obtain all zeroes in one or more, then A–1 does not exists.
Because, no row can become complete 0 if A–1 exists.