MATH 1009 Lecture 12: CH4 Marginal Concepts in Economics

Compute the determinant of the following matrices, use cofactor method. [A] = [1 1 1 1], [B] = [0 1 1 0], [C] = [1 -1 1 1] [0] = [1 1 1 1 1 0 1 0 0] [E] = [1 2 3 4 4 4 5 6 7] [F] = [1 2 3 4 5 6 7 0 0] [G] = [1 -1 0 0 -1 2 -1 0 0 -1 2 -1 0 0 -1 2] [H] = [2 1 0 0 1 2 1 0 1 1 2 1 1 1 1 2] Check the result using matlab!

Compute the determination of the following matrices use cofactor method. [A] = [1 1 1 1], [B] = [0 1 1 0] [c] = [1 -1 1 1] [D] = [1 1 1 1 1 0 1 0 0] [E] = [1 2 3 4 4 4 5 6 7] [F]= [1 2 3 4 5 6 7 0 0] [G] = [1 -1 0 0 -1 2 -1 0 0 -1 2 -1 0 0 -1 2] [H] = [2 1 0 0 1 2 1 0 1 1 2 1 1 1 1 2] check the results using mat lab!