30 Let X be a set. The projection of the vector v onto X, written projx V, is the closest point in X to v. =[] [8]. 30.1 Draw a, b, and in the same picture. 30.2 Find proj), proj(a,b) v. 30.3 Find proj, v. (Recall that a quadratic at + bt +c has a minimum at t = -). 30.4 Is V-proj, a normal vector for l? Why or why not? Let d = b= =[2] and l = span{a}. V =