點做? http://imgur.com/i18DHBv?

用戶44148

2015-11-25 3:23 am

回答 (1)

螞蟻雄兵

2015-11-25 3:51 am

[a+(－2)]/2=0
a=2
(－2+4)/2=1
M(1，0)

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收錄日期: 2021-04-18 14:06:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20151124192330AAYis3i

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