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Matrices — Mathematics STD 10 — Question

ICSE BoardEnglish MediumSTD 10MathematicsMatrices1 Mark
Question
If $A =\left|\begin{array}{lll}1 & 9 & 4 \\ 5 & 0 & 3\end{array}\right|,$ find negative $A$
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Answer

$A=\left|\begin{array}{lll}1 & 9 & 4 \\ 5 & 0 & 3\end{array}\right|_{2 \times 3}$
Negative $A=\left|\begin{array}{ccc}-1 & -9 & -4 \\ -5 & 0 & -3\end{array}\right|_{2 \times 3}$

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