Find the value of a in the following cases
1) G(7,a), H(5,4) ;mGH=3
2) A(-4,-3), B(a,4);mAB=十分七
3)M(a,0), N(-7,-8);mMN=4
收錄日期: 2021-04-27 17:43:19
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https://hk.answers.yahoo.com/question/index?qid=20130217000051KK00177