Activity 2.4 (10pts) Given the matrix 3 7 -4 12 -5 9 10 2 A = 6 13 8 11 15 5 a) Find the maximum and minimum values in each column. b) Find the maximum and minimum values in each row. Activity 2.5 (15pts) Consider the follow arrays. [14 2 A-2 4 100 B = In(A) 79 7 [342] Write MATLAB expressions to do the following. a) Select just the second row of B. b) Evaluate the sum of the second row of B. c) Multiply the second column of B and the first column of A element by element. d) Evaluate the maximum value in the vector resulting from element by element multiplication of the second column of B with the first column of A. e) Use the element by element division to divide the first row of A by the first three elements of the third column of B. Evaluate the sum of the resulting vector.