1. √72/√32
2. √1000/243
3. (2√3+7√2)^2
4.(√3+2√5)(4-3√15)
根式化簡,急啊!
2011-03-30 5:26 am
回答 (1)
2011-03-30 5:33 am
✔ 最佳答案
1. √72/√32= √(72/32)
= √(9/4)
= 3/2
2. √1000/243
= 10√10/243
3. (2√3+7√2)^2
= 4(3)+49(2)+14√6
= 110+14√6
4.(√3+2√5)(4-3√15)
= 4√3 - 3√45 + 8√5 - 6√75
= 4√3 - 9√5 + 8√5 - 30√3
= -26√3 - √5
參考: Hope the solution can help you^^”
收錄日期: 2021-04-21 22:07:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110329000051KK01368