Jawabanmu

2013-12-09T09:26:10+07:00
Gunakan sifat ini:
a'log b + a'log c = a'log b.c
a'log b - a'log c = a'log b/c

log 4+log 25-log 10+ log 50
= log(4.25.50/10)
= log 500
=log 100 +log 5
= 2 + log 5
1 5 1