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c va rog
Multumesc anticipat!


C Va RogMultumesc Anticipat class=

Răspuns :

c) lg(x^(1/3)) - (lg(x^3))^2 =(1/3)lgx - (3lgx)^2 = lgx(1/3 - 9lgx) = 0
lgx = 0 = lg1 => x1 = 1
1/3 - 9lgx = 0 => 1/27 = lgx => lgx = lg(10^(1/27) => x2 = 10^(1/27
Numai x1 verifica ec. data