Saturday
April 19, 2014

Homework Help: math

Posted by John on Wednesday, March 31, 2010 at 11:32am.

u=(2 cos pi/4)i + (2 sin pi/4)j, v = (cos 3pi/2)i + (sin 3pi/2)j

find the angle theta between the two

I'm at a lost on what to do.

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