The angle between twovctors 2i+2j and (m-4)i+(m+4)j is
where sin =4/5,Find the possible value(s) of m
收錄日期: 2021-04-29 19:45:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080113000051KK01177