1. The problem statement, all variables and given/known data I feel like this is a easy question but it seems the answer key doesn't seem to be right. So say I have 2 vectors and I'm trying to find the projection of vector u perpendicular to the vector v 2. Relevant equations 3. The attempt at a solution So I don't remember doing something like this before but I would assume that I start off by finding the projection of u in direction of v alright so this gives me So conceptually thinking I see that I have a vector u and a vector V|| sort of like this So I can find the angle between u and V and I get 104.963 degrees So to get the perpendicular component is it just tan(theta) = (V perpendicular)/(V parallel) so V perpendicular is (V parallel)tan(theta) = V perpendicular? I think is conceptually ok but I'm not sure because my answer key does V - V parallel which would appear to be wrong in my opinion because I don't see how that would give us V perpendicular, unless I'm not understanding what vector I'm looking for. Thanks for any help.