Recall that the LDA discriminant function for xRn in class k is: k(x) = log(k) + x1k 1 2 k 1k a) (5 points) Suppose Y {1,2}with Pr(Y = 1) = 1 = 0.6 and Pr(Y = 2) = 2 = 0.4. Conditional on class k, the feature X R is Gaussian with a common variance 2 = 4 and means 1 = 2, 2 = 5. Write the LDA discriminant functions 1(x), 2(x) and find the