如果
....................AXB
..... 480= ----------
....... ............A+B
求A同B 請問點求=W= 求幫助
問條數學..請識o既人幫幫助
2012-09-17 4:38 am
回答 (3)
2012-09-17 7:02 am
✔ 最佳答案
suggested solution:圖片參考：http://imgcld.yimg.com/8/n/HA08446686/o/701209160061513873365910.jpg
2012-09-17 10:44 pm
路過計下，唔知得唔得
480=(ab)/(a+b)
480a+480b=ab
0=ab - 480a - 480b
(480)^2=ab - 480a - 480b +(480)^2
(480)(480)=(a-480)(b-480)
唔知可唔可以 480 = a-480 = b-480
a=b=960
480=(ab)/(a+b)
480a+480b=ab
0=ab - 480a - 480b
(480)^2=ab - 480a - 480b +(480)^2
(480)(480)=(a-480)(b-480)
唔知可唔可以 480 = a-480 = b-480
a=b=960
2012-09-17 5:17 am
1 equation, 2 unknown, unsolvable.
收錄日期: 2021-04-13 18:58:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120916000051KK00615