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Algebra 11 Online
OpenStudy (anonymous):

what's mean "Find a matrix B that is row equivalent to A"

OpenStudy (phi):

according to wikipedia http://en.wikipedia.org/wiki/Row_equivalence In linear algebra, two matrices are row equivalent if one can be changed to the other by a sequence of elementary row operations. Alternatively, two m × n matrices are row equivalent if and only if they have the same row space.

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