Tips - Addition and Subtraction of Matrices Matrices can be added or subtracted when they have the s

Question

Tips - Addition and Subtraction of Matrices Matrices can be added or subtracted when they have the same order. $\begin{pmatrix} a & b \ c & d \end{pmatrix} + \begin{pmatrix} e & f \ g & h \end{pmatrix} = \begin{pmatrix} a+e & b+f \ c+g & d+h \end{pmatrix} \quad \text{or} \quad \begin{pmatrix} a & b \ c & d \end{pmatrix} - \begin{pmatrix} e & f \ g & h \end{pmatrix} = \begin{pmatrix} a-e & b-f \ c-g & d-h \end{pmatrix}$ If $A = \begin{pmatrix} 2 & 5 \ 3 & 6 \end{pmatrix}$ and $B = \begin{pmatrix} -1 & -5 \ -3 & -5 \end{pmatrix}$, find $A + B$.

Accepted Answer

$\begin{pmatrix}1&0\0&1\end{pmatrix}$

Addition and Subtraction of Matrices

Addition and Subtraction of Matrices

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