The rank of the matrix \(A = \left[ {\begin{array}{*{20}{c}} 1&1&2\\ – McqOptions

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1.	The rank of the matrix \(A = \left[ {\begin{array}{*{20}{c}} 1&1&2\\ 1&2&3\\ 0&{ - 1}&1 \end{array}} \right]\)
A.	0
B.	1
C.	2
D.	3
Answer» E.

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