1. The problem statement, all variables and given/known data Consider v1 = 30 sin(ωt + 10º) and v2 = 20 cos(ωt - 40º) A: v1 is in advance to v2 B: v1 differs 50º from v2 C: v2 is in advance to v1 D: v1 is in quadrature to v2 2. Relevant equations 3. The attempt at a solution I think the correct answer is A because v1's angle is nearer -∏/2 than v2's. Does this make any sense? Thanks for any help.