如何證明一元三次方程的求根公式？
圖片參考：http://upload.wikimedia.org/math/2/6/9/26909d8885aded28589de74a02ea4519.png
An interesting Maths question
2011-03-24 8:04 am
回答 (1)
2011-03-24 8:33 pm
✔ 最佳答案
As follows:圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_01Mar241154.gif
圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_03Mar241212.gif
圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_04Mar241218.gif
圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_05Mar241225.gif
圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_06Mar241228.gif
圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_07Mar241230.gif
2011-03-24 12:36:02 補充：
If the pics cannot be seen, please visit:
http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_01Mar241154.gif
http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_03Mar241212.gif
http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_04Mar241218.gif
2011-03-24 12:36:05 補充：
http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_05Mar241225.gif
http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_06Mar241228.gif
http://i707.photobucket.com/albums/ww74/stevieg90/ScreenHunter_07Mar241230.gif
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110324000051KK00004