Log9 (27c) если log3 c=0,5

Question

Log9 (27c) если log3 c=0,5

Answer 1

Log9 (27c)  =log3 (27c) / log3 (9) = (log3 (27) + log3 (c)) / 2 = (3 +0.5) / 2=3.5/2=1,75