中六pure math

👨🏻‍🏫 學術台數學

2008-09-07 11:25 pm

resolve in the partial fraction
8/x^4+4
我計到 x^4+4=(x^2-2x+2)(x^2+2x+2)
次後
8/x^4+4=a/x^2-2x+2 + b/x^2+2x+2
之後計唔到ans.

回答 (2)

2008-09-08 1:14 am

✔ 最佳答案

As follows:

圖片參考：http://hk.geocities.com/stevieg_1023/0part.gif

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2008-09-08 1:24 am

You may compare with my solution:
http://i295.photobucket.com/albums/mm158/Audrey_hepburn2008/A_Hepburn01Sep071723.jpg

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收錄日期: 2021-04-22 00:37:40
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