MathAlgebraLinear algebraMatrices

Operations with matrices

Two matrices

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What is $\begin{pmatrix} 1 & 3 & 5 \\ 5 & 7 & 9 \end{pmatrix} + \begin{pmatrix} 2 & 1 \\ 1 & 2 \\ 2 & 7 \end{pmatrix}$ ?

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\begin{pmatrix} 3 & 4 & 7 \\ 6 & 9 & 16 \end{pmatrix}

\begin{pmatrix} 3 & 6 \\ 4 & 9 \\ 7 & 16 \end{pmatrix}

Come on guys! Are you serious? What are you talking about?

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