a) 3log₃√2 - 1/2log₃2 - log₃6 = log₃2√2 - log₃√2 - log₃6 = log₃(2√2/√2/6) = log₃(2√2 * 1/√2 * 1/6) = log₃(1/3) = -1
b) log₂0,08 + 4log₂5 - log₂12,5 = log₂(0,08 * 5⁴ : 12,5) = log₂4 = 2
c) log₅2,4 + 2/3log₅0,125 - log₅3 = log₅(2,4*∛0,125² : 3) = log₅0,2 = -1
d) log2,5 - 3/2log0,25 + log50 = log(2,5 : √0,25³ * 50) = log1000 = 3
