math equation of circle
回答 (2)
2011-02-03 10:44 pm
✔ 最佳答案
x^2 - 6x = y^2 - 7y
x^2 - y^2 - 6x + 7y = 0
因為x^2的係數和y^2的係數并不相等﹐因此一定不是圓。
2011-02-03 10:15 pm
x^2 - 6x = y^2 - 7y
x^2 - y^2 - 6x + 7y = 0
hyperbola
x^2 - y^2 - 6x + 7y = 0
hyperbola
收錄日期: 2021-04-26 14:03:32
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https://hk.answers.yahoo.com/question/index?qid=20110203000051KK00295