Jika ⁵ log 4 =m,⁴log 3=n,nyatakan ¹² log 100 dalam m dan n
Jawaban
5 log 4 = m
4 log 3 = n
maka 5 log 4 . 4 log 3 = mn
5 log 3 = mn
12 log 100 = 5 log 12 / 5 log 100
= 5 log 4 + 5 log 3 / 5 log 25 + 5 log 4
= m + mn / 2 + m
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