Find the rank of the matrix \(A = \left[ {\begin{array}{*{20}{c}} 1&2&3\\ { - 1}&{ - 2}&1\\ 1&0&5 \end{array}} \right]\)
1
3
2
1
3
2
4
0
5
Not Attempted
Find the rank of the matrix \(A = \left[ {\begin{array}{*{20}{c}} 1&2&3\\ { - 1}&{ - 2}&1\\ 1&0&5 \end{array}} \right]\)