Consider the matrix A=(1201)A = \begin{pmatrix} 1 & 2 \\ 0 & 1 \end{pmatrix}A=(1021). What is det(An)\det(A^n)det(An) for any n≥1n \geq 1n≥1?
nnn
1n1^n1n
2n2^n2n
000