1) log(2) 64 = 6
log(1/5) 125 = -3
5^(log(5) 7) = 7
2) log(6) 2 + log(6) 3 = log(6) 6 = 1
log(1/3) 45 - log(1/3) 15 = log(1/3) 3 = -1
log(a) a^(3/5) = 3/5
3) (log(5) 8 ) / (log(5) 2) = log(2) 8 = 3
