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## Homework Statement

Find the magnitude and direction of the resultant force Fr=F1+F2+F3 by first finding F'=F1+F2 then Fr=F'+F3

known values are in the link

## Homework Equations

Basic vector addition. Law of cosines. Law of sines.

## The Attempt at a Solution

Here's my attempt. I'm not convinced by my answer.

http://imgur.com/LcrFApu

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