cx=開方(ax^2-b/d)
pepress x in terms of a b, c and d if x is positive.
Mathes
2008-12-22 12:20 am
回答 (1)
2008-12-22 12:56 am
✔ 最佳答案
The answer is as follows:圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/20081221_mat_3.jpg?t=1229849776
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081221000051KK01110