Let A=(1201)A = \begin{pmatrix} 1 & 2 \\ 0 & 1 \end{pmatrix}A=(1021). What is the matrix eAe^AeA?
(e2e0e)\begin{pmatrix} e & 2e \\ 0 & e \end{pmatrix}(e02ee)
(ee0e)\begin{pmatrix} e & e \\ 0 & e \end{pmatrix}(e0ee)
(e22e20e2)\begin{pmatrix} e^2 & 2e^2 \\ 0 & e^2 \end{pmatrix}(e202e2e2)
(1201)\begin{pmatrix} 1 & 2 \\ 0 & 1 \end{pmatrix}(1021)