Question

Хелп помогите решить

Answer 1

$\left[\begin{array}{ccccc}1&-1&3&|&-4\\2&1&-2&|&5\\3&3&1&|&6\end{array}\right] \sim\{a_2'=a_2'+a_1'\}\sim\left[\begin{array}{ccccc}1&-1&3&|&-4\\3&0&1&|&1\\3&3&1&|&6\end{array}\right] \sim\\\\\\\sim \{a_3'=(a_3'-a_2')/3\}\sim \left[\begin{array}{ccccc}1&-1&3&|&-4\\3&0&1&|&1\\0&1&0&|&5/3\end{array}\right] \sim\{a_1'=(a_1'+a_2'+a_3')/4\}\sim\\\\\\\sim \left[\begin{array}{ccccc}1&0&1&|&-1/3\\3&0&1&|&1\\0&1&0&|&5/3\end{array}\right]\sim\{a_2'=(a_2'-a_1')/2\}\sim$

$\sim\left[\begin{array}{ccccc}1&0&1&|&-1/3\\1&0&0&|&2/3\\0&1&0&|&5/3\end{array}\right]\sim \{a_1'=a_1'-a_2'\}\sim\left[\begin{array}{ccccc}0&0&1&|&-1\\1&0&0&|&2/3\\0&1&0&|&5/3\end{array}\right]\\\\\\\left\{\begin{array}{c}x=2/3\\y=5/3\\z=-1\end{array}\right$