The rank of the matrix \(\left[ {\begin{array}{*{20}{c}}{ - 4}&1&{ - – McqOptions

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1.	The rank of the matrix \(\left[ {\begin{array}{*{20}{c}}{ - 4}&1&{ - 1}\\{ - 1}&{ - 1}&{ - 1}\\7&{ - 3}&1\end{array}} \right]\)
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

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