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Дана матрица A= \left( \begin{array}{ccc} \,\, 2& \,-4&\,\,3\\ \\ \\ \,\, 8...

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Дана матрица

A= \left( \begin{array}{ccc} \,\, 2& \,-4&\,\,3\\ \\ \\ \,\, 8 & \,-15&\,\,10\\ \\ \\ \,\,-4& \, 8&\,-5\end{array} \right)A= \left( \begin{array}{ccc} \,\, 2& \,-4&\,\,3\\ \\ \\ \,\, 8 & \,-15&\,\,10\\ \\ \\ \,\,-4& \, 8&\,-5\end{array} \right) 

Найти обратную матрицу A−1.

1)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,-2&\,2,5\\ \\ \\ \,\,0&\,1&\,2\\ \ \\ \,5& \,-4&\,1\end{array} \right);1)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,-2&\,2,5\\ \\ \\ \,\,0&\,1&\,2\\ \ \\ \,5& \,-4&\,1\end{array} \right);  2)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,2&\,2,5\\ \\ \\ \,\,0&\,1&\,2\\ \ \\ \,2& \,0&\,1\end{array} \right);2)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,2&\,2,5\\ \\ \\ \,\,0&\,1&\,2\\ \ \\ \,2& \,0&\,1\end{array} \right); 

3)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,2&\,2,5\\ \\ \\ \,\,0&\,1&\,4\\ \ \\ \,2& \,0&\,1\end{array} \right);3)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,2&\,2,5\\ \\ \\ \,\,0&\,1&\,4\\ \ \\ \,2& \,0&\,1\end{array} \right); 4)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,0&\,-2\\ \\ \\ \,\,-2&\,1&\,2\\ \ \\ \,2,5& \,0&\,1\end{array} \right).4)A^{-1}=\left( \begin{array}{ccc} \,\,-2,5& \,\,0&\,-2\\ \\ \\ \,\,-2&\,1&\,2\\ \ \\ \,2,5& \,0&\,1\end{array} \right).  

 

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