Tuesday
March 31, 2015

Homework Help: Pre Cal/Vectors

Posted by Joe on Sunday, July 24, 2011 at 8:06pm.

Can someone show the steps involved in figuring out this type of problem?

Given the magnitudes of vectors u and v and the angle Ό between them, find the magnitude of the sum u + v to the
nearest tenth and the angle that the sum vector makes with u to the nearest degree.
/u/= 20, /v/= 86, Ό = 90

The answer is 88.3 and 77deg but I don't know how to get to this. Thanks in advance

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