6b...中四MATH...請詳列步驟'

SiuDyun

2006-12-05 4:47 am

log(xy)=2
試以y表示x

回答 (2)

Ho Yin

2006-12-05 4:51 am

✔ 最佳答案

log(xy)=2
log(xy)=log 10^2
log(xy)=log 100
xy=100
x=100/y

參考: myself

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felixytf

2006-12-05 4:51 am

xy=100
x=100/y

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