Найдите значение выражения
7,4^2- 2.6^2
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11,2^2 -8,8^2
7,4^2- 2.6^2
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11,2^2 -8,8^2
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Ответ:
[tex] \frac{( \frac{37}{5 }) {}^{2} - ( \frac{13}{5} ) ^{2} }{( \frac{56}{5 }) ^{2} - ( \frac{44}{5} ) ^{2} } = \frac{ \frac{1369}{25} - \frac{169}{25} }{ \frac{3136}{25} - \frac{1936}{25} } = \frac{48}{ \frac{1200}{25} } = \frac{48}{48} = 1[/tex]