If log(a + b) = log a + log b, then a = ?
回答 (3)
2008-01-19 9:09 pm
✔ 最佳答案
唔知係咪~__~log(a + b)= log a + log b
log(a + b)= log ab
a+b = ab
ab - a = b
a ( b - 1) = b
a = b / (b - 1)
2008-01-19 9:07 pm
log(a+b) = log a + log b
log(a+b) = log ab
a + b = ab
b = ab - a
b = a (b-1)
a = b/(b-1)
log(a+b) = log ab
a + b = ab
b = ab - a
b = a (b-1)
a = b/(b-1)
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https://hk.answers.yahoo.com/question/index?qid=20080119000051KK01437