B) logg x=1/3; r) log 0,25 x = 3/2

1. в) $$log_8 x = \frac{1}{3} \implies x = 8^{\frac{1}{3}} = \sqrt[3]{8} = 2$$
2. г) $$log_{0.25} x = \frac{3}{2} \implies x = (0.25)^{\frac{3}{2}} = (\frac{1}{4})^{\frac{3}{2}} = (\frac{1}{2^2})^{\frac{3}{2}} = (\frac{1}{2})^3 = \frac{1}{8} = 0.125$$

Ответ: в) 2, г) 0.125