1. Consider a linear discriminant g(x) = a x +b. (a) Use the method of Lagrange multipliers to show that the distance of a point xo to the hyperplane g(x) = 0 is given by |g(xo)//llall- Hint: Set up a minimization problem with an equality constraint. (The theory is similar to the case with inequality constraints, except that the Lagrange multiplier is unconstrained and there is no complementary slackness condition). (b) Use the result in item (a) to show that the margin in a linear SVM is equal to 1/||all