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Model Paper 1 — MATHS STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceMATHSModel Paper 11 Mark
Question
Let $A=\left|\begin{array}{ll}1 & 1 \\ 0 & 0\end{array}\right|,$ then
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Answer

$A^2=\left|\begin{array}{ll}1 & 1 \\ 0 & 0\end{array}\right|\left|\begin{array}{ll}1 & 1 \\ 0 & 0\end{array}\right|$
$=\left|\begin{array}{ll}1 & 1 \\ 0 & 0\end{array}\right|$
$=A$

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