Предмет: Алгебра, автор: Катюша2020201

(1+а^-2/1-а^-2)^-1
Задание по алгебре

Ответы

Автор ответа: sedinalana
0
1+1/a²=(a²+1)/a²
1-1/a²=(a²-1)/a²
(a²+1)/a²:(a²-1)/a²=(a²+1)/a² *a²/(a²-1)=(a²+1)/(a²-1)
[(a²+1)/(a²-1)]^-1=(a²-1)/(a²+1)
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