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Find the matrices of a+B-C

Find the matrices of a+B-C-example-1

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Answer:


\displaystyle \left[\begin{array}{cc}-5&6&-1&-2\end{array}\right]

Explanation:


A+B-C\\\\=\displaystyle \left[\begin{array}{cc}-9&4&3&-3\end{array}\right]+\left[\begin{array}{cc}4&5&-9&2\end{array}\right]-\left[\begin{array}{cc}0&3&-5&1\end{array}\right]\\\\=\left[\begin{array}{cc}-9+4-0&4+5-3&3+(-9)-(-5)&-3+2-1\end{array}\right]\\\\=\left[\begin{array}{cc}-5&6&-1&-2\end{array}\right]

Note that matrices can only be added (or subtracted) if the dimensions of each matrix are the same.

User Gray Adams
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