The matrix A=(3210−25004)A = \begin{pmatrix} 3 & 2 & 1 \\ 0 & -2 & 5 \\ 0 & 0 & 4 \end{pmatrix}A=3002−20154 is upper triangular. What are its eigenvalues?
3, -2, 4
2, 5, 1
0, 0, 0
Cannot be determined from the form