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9: Адекватність рішень
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\[\begin{split} \left\| A \right\|_{\infty} &= \begin{matrix} \max \\ 1 \leq i \leq 3 \\ \end{matrix}\sum_{j = 1}^{3}\left| a_{ij} \right|\\ &= max\left\lbrack \left( \left| 10 \right| + \left| - 7 \r...\[\begin{split} \left\| A \right\|_{\infty} &= \begin{matrix} \max \\ 1 \leq i \leq 3 \\ \end{matrix}\sum_{j = 1}^{3}\left| a_{ij} \right|\\ &= max\left\lbrack \left( \left| 10 \right| + \left| - 7 \right| + \left| 0 \right| \right),\left( \left| - 3 \right| + \left| 2.099 \right| + \left| 6 \right| \right),\left( \left| 5 \right| + \left| - 1 \right| + \left| 5 \right| \right) \right\rbrack\\ &= max\left\lbrack \left( 10 + 7 + 0 \right),\left( 3 + 2.099 + 6 \right),\left( 5 + 1 + 5 \right) \ri…