Jawabanmu

2014-08-24T15:06:04+07:00
A. Log 18 = log2 x log3 x log7 = 0,3010+0,4771+0,8451 = 1,2552
B. Log 21 = log3 x log 7 = 0,4771+0,8451= 1,3222
C. Log 10,5 = log3 x log7 : log2 = 0,4771+ 0,8451- 0,3010 = 1,0212
D. Log 1/7 = log1 x log7 = 0-0,8451 = 0,8451
2014-08-24T18:26:13+07:00
A. log 18 = log3.log3.log2 = 0,4771+0,4771+0,3010= 1,2552
b. log21 = log7.log3 = 0,8451+0,4771 = 1,3222