Question

multiplicação de matrizes abrem a foto por favor​

Answer 1

$\bf\large\green{\underline{\qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad}}$

$\green{\rm\underline{EXPLICAC_{\!\!\!,}\tilde{A}O\ PASSO{-}A{-}PASSO\ \ \ }}$✍

❄☃ $\sf(\gray{+}~\red{cores}~\blue{com}~\pink{o}~\orange{App}~\green{Brainly})$ ☘☀

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☺lá, Claudia, como tens passado nestes tempos de quarentena⁉ E os estudos à distância, como vão⁉ Espero que bem❗ Acompanhe a resolução abaixo.

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1)Ⓐ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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$\sf\large\blue{3 \cdot A_{4,2}=\left[\begin{array}{cc}3 \cdot 1&3 \cdot 2\\\\3 \cdot -4&3 \cdot 5\\\\3 \cdot 2&3 \cdot 0\\\\3 \cdot -1&3 \cdot 8\\\end{array}\right]}$

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$\green{\boxed{\sf\large\blue{3A_{4,2}=\left[\begin{array}{cc}3&6\\\\-12&15\\\\2&0\\\\-1&8\\\end{array}\right]}}}$

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Ⓑ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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$\sf\large\blue{-2 \cdot  A_{2,2}=\left[\begin{array}{cc}(-2) \cdot -3&(-2) \cdot 5\\\\(-2) \cdot -4&(-2) \cdot 0\\\end{array}\right]}$

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$\green{\boxed{\sf\large\blue{-2A_{2,2}=\left[\begin{array}{cc}6&-10\\\\8&0\\\end{array}\right]}}}$

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Ⓒ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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$\sf\large\blue{-1 \cdot C_{1,2}=\left[\begin{array}{cc}(-1) \cdot 8&(-1) \cdot -4\\\end{array}\right]}$

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$\green{\boxed{\sf\large\blue{-C_{1,2}=\left[\begin{array}{cc}-8&4\\\end{array}\right]}}}$

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2)Ⓐ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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$\sf\large\blue{ \left[\begin{array}{cc} 5 \cdot 2& 5 \cdot -3\\\\ 5 \cdot 4& 5 \cdot -1\\\end{array}\right] + \left[\begin{array}{cc}3 \cdot 0&3 \cdot 1\\\\3 \cdot 2&3 \cdot 3\\\end{array}\right]}$

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$\sf\large\blue{ \left[\begin{array}{cc}10& -15\\\\ 20& -5\\\end{array}\right] + \left[\begin{array}{cc}0&30\\\\6&9\\\end{array}\right]}$

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$\sf\large\blue{ \left[\begin{array}{cc}10 + 0& -15 + 30\\\\ 20 + 6& -5 + 9\\\end{array}\right]}$

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$\green{\boxed{\sf\large\blue{ \left[\begin{array}{cc}10&15\\\\26&4\\\end{array}\right]}}}$

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Ⓑ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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$\sf\large\blue{\left[\begin{array}{cc}6 \cdot 2&6 \cdot -3\\\\6 \cdot 4&6 \cdot -1\\\end{array}\right] + \left[\begin{array}{cc}-3 \cdot 0&-3 \cdot 1\\\\-3 \cdot 2&-3 \cdot 3\\\end{array}\right]}$

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$\sf\large\blue{\left[\begin{array}{cc}12&-18\\\\24&-6\\\end{array}\right] + \left[\begin{array}{cc}0&-3\\\\-6&-9\\\end{array}\right]}$

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$\sf\large\blue{\left[\begin{array}{cc}12 + 0&-18 - 3\\\\24 - 6&-6 - 9\\\end{array}\right]}$

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$\green{\boxed{\sf\large\blue{\left[\begin{array}{cc}12&-21\\\\18&-15\\\end{array}\right]}}}$

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Ⓒ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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$\sf\large\blue{\left[\begin{array}{cc}2&-3\\\\4&-1\\\end{array}\right] + \left[\begin{array}{cc}5 \cdot 0&5 \cdot 1\\\\5 \cdot 2&5 \cdot 3\\\end{array}\right] + \left[\begin{array}{cc}(-2) \cdot -2&(-2) \cdot 8\\\\(-2) \cdot 1&(-2) \cdot -3\\\end{array}\right]}$

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$\sf\large\blue{\left[\begin{array}{cc}2&-3\\\\4&-1\\\end{array}\right] + \left[\begin{array}{cc}0&5\\\\10&15\\\end{array}\right] + \left[\begin{array}{cc}4&-16\\\\-2&6\\\end{array}\right]}$

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$\sf\large\blue{\left[\begin{array}{cc}2 + 0 + 4&-3 + 5 - 16\\\\4 + 10 - 2&-1 + 15 + 6\\\end{array}\right]}$

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$\green{\boxed{ \sf\large\blue{\left[\begin{array}{cc}6&-14\\\\12&20\\\end{array}\right]}}}$

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Ⓓ$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\quad}}$✍

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 $\sf\large\blue{\left[\begin{array}{cc}2 \cdot 0&2 \cdot 1\\\\2 \cdot 2&2 \cdot 3\\\end{array}\right] + \left[\begin{array}{cc}(-1) \cdot -2&(-1) \cdot 8\\\\(-1) \cdot 1&(-1) \cdot -3\\\end{array}\right]}$

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 $\sf\large\blue{\left[\begin{array}{cc}0&2\\\\4&6\\\end{array}\right] + \left[\begin{array}{cc}2&-8\\\\-1&3\\\end{array}\right]}$

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 $\sf\large\blue{\left[\begin{array}{cc}0 + 2&2 - 8\\\\4 - 1&6 + 3\\\end{array}\right]}$

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 $\green{\boxed{\sf\large\blue{\left[\begin{array}{cc}2&-6\\\\3&9\\\end{array}\right]}}}$

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$\bf\large\red{\underline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}}$☁

☕ $\bf\large\blue{Bons\ estudos.}$

($\orange{D\acute{u}vidas\ nos\ coment\acute{a}rios}$) ☄

$\bf\large\red{\underline{\qquad \qquad \qquad \qquad \qquad \qquad \quad }}\LaTeX$✍

❄☃ $\sf(\gray{+}~\red{cores}~\blue{com}~\pink{o}~\orange{App}~\green{Brainly})$ ☘☀

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$\large\textit{"Absque~sudore~et~labore}$

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