234450R²+288900R-38050 = 0
Then R = ?
Pls help ~
數學問題 : 234450R²+288900R-38050 = 0
2007-03-20 11:56 pm
回答 (2)
2007-03-21 12:09 am
✔ 最佳答案
delta = 119146500000(B^2-4AC)^(1/2)=345176(appoix.)
R=(-(B)+(B^2-4AC)^(1/2))/2A
R=(-(B)-(B^2-4AC)^(1/2))/2A
R = 0.12 or R = -1.352
2007-03-20 16:18:40 補充：
R = 0.1200172 and -1.352263
2007-03-21 12:09 am
This is very simple, you can find the answer in these two web sites,
http://en.wikipedia.org/wiki/Quadratic_equation
http://zh.wikipedia.org/w/index.php?title=%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B&variant=zh-hk
http://en.wikipedia.org/wiki/Quadratic_equation
http://zh.wikipedia.org/w/index.php?title=%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B&variant=zh-hk
參考: Wikipedia
收錄日期: 2021-04-12 23:34:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070320000051KK01780