Jawabanmu

2014-09-13T06:30:29+07:00
Log(1/7)=log 1  - log 7 = 0  - 0,8451

log√a + log √b -1/2 log ab=

log √ a b - 1/2 log ab =

log ab^(1/2)  - 1/2 log ab

=1/2 log ab - 1/2 log ab =0