Addition & Scalar Multiplication Of Matrices

Addition:

    \[\begin{bmatrix}   a & b \newline    c & d \newline   \end{bmatrix} + \begin{bmatrix}   w & x \newline    y & z \newline   \end{bmatrix} = \begin{bmatrix}   a+w & b+x \newline    c+y & d+z \newline   \end{bmatrix}\]

Scalar multiplication:

    \[\begin{bmatrix}   a & b \newline    c & d \newline   \end{bmatrix} \times x = \begin{bmatrix}   a\times x & b\times x \newline    c\times x & d\times x \newline   \end{bmatrix}\]

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