(a) (1,3,2,0),(4,1,-2,-2),(0,2,0,3),(4,7,1,2)

4. (20%) It is known that the nxn tridiagonal matrixhas eigenvalues for j=1,2,... ..,n. (A is called tridiagonal because all elements are zero except for those on the main diagonal and the two adjacent diagonals.) Verify Bquation (1) by calculating the eigenvalues for n = 1 and n = 2.