1. The problem statement, all variables and given/known data Three vectors A, B, C have magnitudes A=5, B=6 and C=7. The minimum value of |A+B+C| is *A represents magnitude, A represents the vector (magnitude and direction) 2. Relevant equations 3. The attempt at a solution I got 4 because I think that the maximum possible cancellation occurring would be 7-(6+5). But it's wrong.