La scadere de logaritmi cu aceeasi baza, argumentii se impart
a)log4 (8/2) = log4 4 = 1
b) log25 (10/2) = log25 (5) =log5² (5) = 1/2
c) log125 (100/4) = log125 (25) =log5³ (5²) = 2/3
d) log2 (6*4)/3 = log2 (24/3) = log2 8 = log2 2³ = 3
