1.
Let A=[0α00]A = \begin{bmatrix}0&\alpha\\0&0\end{bmatrix} and (A+I)5050A=[abcd](A+I)^{50}-50A = \begin{bmatrix}a&b\\c&d\end{bmatrix}. Find abc+abd+bcd+acdabc+abd+bcd+acd