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Lunniykot
@Lunniykot
August 2022
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Найдите числовое значение выражения при x=9 , y=49
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romaivanov03
(х²+14ху+49у²)/(х² - 49у²) * (21у-3х)/(7х²+49ху) =(х+7у)²/((х-7у)(х+7у)) * (3(7у-х))/(7х(х+7у)) =(3(7у-х))/(7х(х-7у)))=( -3(х-7у))/(7х(х-7у))= - 3/7х
при х=9, у=49
- 3/(7*9)= - 1/21
1 votes
Thanks 1
Lunniykot
А можно на листочке в виде дробей, если не сложно
Lunniykot
Спасибо огромное
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Answers & Comments
при х=9, у=49
- 3/(7*9)= - 1/21