Find s and t such that w=sv+tu is a unit vector parallel to <1,1> where v=<-1,1> and u=<2,4>.
謝謝,
向量(單位向量&平行)
2010-08-24 6:01 am
回答 (1)
2010-08-24 8:57 am
收錄日期: 2021-04-22 00:49:18
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https://hk.answers.yahoo.com/question/index?qid=20100823000051KK01890