8) log₁₀ (1/10)√1000 = log₁₀ (1/10) * 10^(3/2) = log₁₀ 10^(3/2)/10 = log₁₀ 10^(3/2)/10¹ = log₁₀ 10^(3/2 - 1) = log₁₀ 10^(1/2) = 1/2 log₁₀ 10 = 1/2
Ответ: 1/2