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Matrices — Mathematics STD 10 — Question

ICSE BoardEnglish MediumSTD 10MathematicsMatrices2 Marks
Question
$A+B-C=\left[\begin{array}{l}2 \\ 5\end{array}\right]-\left[\begin{array}{l}1 \\ 4\end{array}\right]-\left[\begin{array}{c}6 \\ -2\end{array}\right]$$=\left[\begin{array}{l}2+1-6 \\ 5+4+2\end{array}\right]=\left[\begin{array}{c}-3 \\ 11\end{array}\right]$, find
$:A – B +C$
✓

Answer

$A-B+C$
$=\left[\frac{2}{5}\right]-\left[\frac{1}{4}\right]+\left[\frac{6}{-2}\right]$
$\left[\frac{2-1+6}{5-4-2}\right]$
$=\left[\frac{7}{-1}\right]$

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