Relative to an origin O, the position vectors of the points R and S are 5i-3j and i-3j respectively. Find a unit vector OA?
回答 (2)
2020-08-12 3:16 pm
The question does not mention what A is ?
2020-08-12 3:09 pm
Simple Pythagorean on an x-y type grid
收錄日期: 2021-04-24 07:56:41
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