Выполни умножение: −0,9⋅(−2 1/9)=. Created by jkmuf4311. matematika-ru

9)=...

jkmuf4311 @jkmuf4311

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Выполни умножение: −0,9⋅(−2 1/9)=

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papagenius

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Пошаговое объяснение:

$\displaystyle \[-0.9 \cdot \left({-2\frac{1}{9}}\right)=-\frac{9}{{10}} \cdot \left({- \frac{{19}}{9}}\right)=\frac{{9\cdot 19}}{{10\cdot 9}}=\frac{{19}}{{10}}=1\frac{9}{{10}}=1.9\]$

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