Автор - kikosh2680

упростите уравнение.. помогите... плз... желательно оба..

Ответ

Автор - nKrynka
б)log_2 (4y) - log_2 (8/y) = log_2[ (4y)/(8/y)] =  log_2 [(y^2)/2] = 2log_2 y - 1  

в)  [a^(1/4) +3] / [a^(1/4) - 3] * [a^(1/4) + 3] = 1/[(a^(1/4) - 3]

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