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Автор - dishanloo

Решите неравенство (1/7)^2x-6>343

Ответ

Автор - nat59gut81

Ответ:

Пошаговое объяснение:  

(1/7)^2x-6>343    (1/7)^2x-6>7^3=(1/7)^(-3)

так как     0< 1/7<1,       2x-6<-3    2x<3  x<1,5

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