Q123
The rank of the matrix \[ [ array*20c 1&1&1 \\ 1& - 1&0 \\ 1&1&1 array ]\] is
The rank of the matrix \left[ {\begin{array}{*{20}{c}}
1&1&1 \\
1&{ - 1}&0 \\
1&1&1
\end{array}} \right] is
A.
0
B.
1
C.
2
AnswerD.
3
Answer: Option C
Solution
Answer: Option C
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