MATLAB Assignment Define the variables x = 0.85, y = 12.5, and then use them to create a col- umn vector that has the following elements: y, yt, In(y/x), y-x, and x+y. Create the following matrix by using vector notation for creating vectors with constant spacing and/or the linspace command. Do not type individual elements explicitly. A = 0 5 10 15 20 25 30 600 500 400 300 200 100 0 0 0.8333 1.6667 2.5 3.3333 4.1667 5 Create the following matrix B. 18 17 16 15 14 13 B = 12 11 10 9 8 7 6 5 4 3 2 1 Use the matrix B to: (a) Create a six-element column vector named va that contains the elements of the second and fifth columns of B. (b) Create a seven-element column vector named vb that contains elements 3 through 6 of the third row of B and the elements of the second column of B. (c) Create a nine-element column vector named vc that contains the ele- ments of the second, fourth, and sixth columns of B