If A= [a_{i j}] is a square matrix of order 2 such that a_{i j} ={\\begin{array}{ccc}1 & & \\\\text{ when }\\ i \neq j \ 0 & & \\\\text{ when }\\ i=j\end{array}., then {\A}^2 is:

\left[\begin{array}{cc}1 & 0 \ 1 & 0]\end{array}

\left[\begin{array}{cc}1 & 1 \ 0 & 0]\end{array}

\left[\begin{array}{cc}1 & 1 \ 1 & 0]\end{array}

\left[\begin{array}{cc}1 & 0 \ 0 & 1]\end{array}

CBSE Class 12 Math 2023 Delhi Set 2 Solved Paper - Question 1

Note: Except these, all other questions are from Delhi Set-1

Question : 1 of 14

Marks: +1, -0

A= [a_{i j}]

is a square matrix of order 2 such that

a_{i j}

={\{\table 1, , \;\text " when "\; i ≠ j ; 0, , \;\text " when "\; i=j}.

, then

{\A}^2

is:

Solution:

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