Mathematics
Mathematics, 18.10.2021 07:30, juliashalnev

1. cho ma trận: A=\left[\begin{array}{ccc}1&1&-\\0&1&-\\2&1&1\end{array}\right] Tìm ma trận A^, hoặc A^-1 nếu có

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1. cho ma trận: A= Tìm ma trận A^, hoặc A^-1 nếu có...

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