Предмет: Алгебра, автор: getman6696

Решите неравенство 9^x-1<3

Ответы

Автор ответа: nikitka1805

0

9^х-1=3
3^2х-2=3^1
2х-2=1
2х=2+1
2х=3
х=3/2
х=1,5

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