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If Matrix $A=[a_{ij}]_{2\times 3},$ where$a_{ij} \begin{array}{ 1 1}=1\;if\;i\neq j\\=0\;if\;i=j\end{array}$ then $\;A^2\;$ is equal to:

\[(A)\quad I\quad(B)\quad A\quad(C)\quad 0\quad (D)\quad none\;of\;these\]
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1 Answer

(A) is the right answer.
answered Mar 11, 2013 by sreemathi.v
 

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