log(xy)=2
試以y表示x
6b...中四MATH...請詳列步驟'
2006-12-05 4:47 am
回答 (2)
2006-12-05 4:51 am
✔ 最佳答案
log(xy)=2log(xy)=log 10^2
log(xy)=log 100
xy=100
x=100/y
參考: myself
2006-12-05 4:51 am
xy=100
x=100/y
x=100/y
收錄日期: 2021-04-13 15:15:00
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