unit vectors係咩黎,有咩意思?amaths

2009-11-08 4:45 am

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

回答 (1)

2009-11-16 12:31 am

✔ 最佳答案

unit vector 指長度是１的vector

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