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yaltalove67
@yaltalove67
July 2022
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выполните умножение а^2-1/(а+1)^2 *а^2a+1/а+1
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oksik000
Решим каждую дробь отдельно :
1) (а-1)(а+1)/(а+1)^2=
а-1/а+1
2) а^а+1/а+1=а(а-1)(а+1)/а+1=а(а-1)
3)а-1/а+1*а^2-1/1=а-1/а+1*(а-1)(а+1)/1=а-1*а-1=а
^2-1
Ответ : а^2-1
1 votes
Thanks 1
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Answers & Comments
1) (а-1)(а+1)/(а+1)^2= а-1/а+1
2) а^а+1/а+1=а(а-1)(а+1)/а+1=а(а-1)
3)а-1/а+1*а^2-1/1=а-1/а+1*(а-1)(а+1)/1=а-1*а-1=а^2-1
Ответ : а^2-1