Mathematics, 30.09.2021 23:00 havennn
Tìm để ma trận = \frac{\frac{1\:3\:2}{3\:1\:1-m}}{2\ :m\:1} khả nghịch. Với =1, tìm ma trận thỏa = với =\frac{2\:0\:1}{0\:1\:2}
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In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.
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Tìm để ma trận = \frac{\frac{1\:3\:2}{3\:1\:1-m}}{2\ :m\:1} khả nghịch. Với =1, tìm ma trận thỏa = v...
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