2. Find all eigenvalues and corresponding linearly independenteigenvectors of A = [2 0 3 4] (Its a 2x2 matrix)
4. Find all eigenvalues and corresponding linearly independenteigenvectors of A = [1 0 1 0 2 3 0 0 3] (Its's a 3x3 matrix)
6. Find all eigenvalues and corresponding eigenvectors of A =   1 2 3 0 1 2 0 0 1    .(Its a 3x3 matrix)
