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September 21, 2014

September 21, 2014

Posted by **Anonymous** on Tuesday, April 13, 2010 at 12:37am.

mag V=2

U=<3,-3>

- math -
**Reiny**, Tuesday, April 13, 2010 at 12:42amA unit vector along [3,-3] is [3/√18,-3/√18]

so one of length 2 is

[6/√18, -6/√18] or [√2, -√2] after rationalizing

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