eg.given that u->andv-> are unit vectors and the angle between them is60degree
find丨u->+v->丨
我有answer
但5明
unit vector係咩,有咩用,means 咩
unit vectors係咩黎,有咩意思?amaths
2009-11-08 4:45 am
回答 (1)
2009-11-16 12:31 am
✔ 最佳答案
unit vector 指長度是１的vector
收錄日期: 2021-04-23 21:33:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091107000051KK01536