(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

If A, B, and C are the vertices of a triangle, find the following.

(A→B) + (B→C) + (C→A)

The answer has to be given like this:

_____ i + _____ j

2. Relevant equations (I think?)

a+b=b+a

a+(b+c)=(a+b)+c

a+0=a

a+(-a)=0

c(a+b)=ca+cb

(c+d)a=ca+da

(cd)a=c(da)

1a=a

3. The attempt at a solution

I'm not even sure what kind of solution this should look like. My best guess would be

<A+B+C>i + <A+B+C>j

Any better, more sensible ideas? Thanks!

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# Homework Help: Addition of vectors with triangle vertices

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