if a and b are the roots of x^2-x-1=0
x>y
can we still use sum of roots and products of roots properties.?
http://imageshack.us/content_round.php?page=done&l=img208/125/26049931.png
點樣證依個?? thanks (ans in detail)
2012-09-01 3:30 am
回答 (1)
2012-09-02 6:50 pm
收錄日期: 2021-04-23 23:27:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120831000051KK00686