# Combinatorics involved in matrix

Probability Level 4

Let matrix $A= \begin{bmatrix} x & y & -z \\ 1 & 2 & 3 \\ 1 & 1 & 2 \end{bmatrix}$

where $x,y,z \in \mathbb{N}$. If $|adj(adj(adj(adj.A)))|=4^8.5^{16}$, then find the no. of positive integral solutions.

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