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!