1. The problem statement, all variables and given/known data Let A(theta)x = b for each theta in S. Calculate, (x dot b)/(|x||b|) A = [cos(theta) -sin(theta) sin(theta) cos(theta)] How is this related to theta? Recall that x dot y and |x| are the standard dot-product and magnitude, respectively, from vector-calculus. These operations hold for vectors in Rn but now have the following definitions, x dot y = x(transpose)y and |x =sqrt(x(transpose)*x) 2. Relevant equations 3. The attempt at a solution I'm not sure how to do this because i don't know what x is or what b is, so i'm confused.