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karmanovanika
@karmanovanika
August 2022
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ДАЮ 20 БАЛЛОВ,ПОМОГИТЕ ПОЖАЛУЙСТА:
упростите выражения: (у-4/3y-3+ 1/y-1) : y+1/3+ 2/y^2-1 и найдите его значение при у=1/3
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vetokey
Если правильно понял задание
(у-4/3y-3+ 1/y-1) : y+1/3+ 2/y^2-1
(y-4/3y+1/y-4):y+1/3+2/y^2-1
1-4/3y^2+1/y^2-4/y+1/3+2/y2-1
-4/3y^2+3/y^2-4/y+1/3
9/3y^2-4/3y^2-4/y+1/3
5/3y^2-4/y+1/3
если y=1/3
5/(3*(1/3)^2)-4/(1/3)+1/3=5/(3/9)-4*3+1/3=5*3-12+1/3=3 целых и 1/3
10 votes
Thanks 5
karmanovanika
нет не так
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Answers & Comments
(у-4/3y-3+ 1/y-1) : y+1/3+ 2/y^2-1
(y-4/3y+1/y-4):y+1/3+2/y^2-1
1-4/3y^2+1/y^2-4/y+1/3+2/y2-1
-4/3y^2+3/y^2-4/y+1/3
9/3y^2-4/3y^2-4/y+1/3
5/3y^2-4/y+1/3
если y=1/3
5/(3*(1/3)^2)-4/(1/3)+1/3=5/(3/9)-4*3+1/3=5*3-12+1/3=3 целых и 1/3