MathAlgebraLinear algebraMatrices

Operations with matrices

Some computation

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If $N = \begin{pmatrix} -1 & 2 \\ 3 & -4 \end{pmatrix}$ and $M = \begin{pmatrix} 1 & -2 \\ -3 & 4 \end{pmatrix}$ , then what is $3N + M^T$ ?

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\begin{pmatrix} -2 & 4 \\ 6 & -8 \end{pmatrix}

\begin{pmatrix} -2 & 3 \\ 7 & -8 \end{pmatrix}

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

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