log question

2010-12-28 10:21 pm
[ log(x^2)(y^3) ] / [ logx+(3/2)logy ]

回答 (3)

2010-12-28 10:26 pm
✔ 最佳答案
[log (x2 y3)]/[log x + (3/2) log y] = (log x2 + log y3)/(log x + (3/2) log y)

= (2 log x + 3 log y)/[log x + (3/2) log y]

= (2 log x + 3 log y)/[(1/2) (2 log x + 3 log y)]

= 1/(1/2)

= 2
參考: 原創答案
2010-12-28 10:34 pm
翻雷滾天 風卷殘雲 is the correct answer. Pick it up!


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