\begin{tabular}{|l|l|l|l|} \hline Sr. No & \multicolumn{1}{|c|}{ Description } & Marks \\ \hline 1 & CLO: - & Domain: - & 20 \\ \cline { 2 - 4 } & Consider a DT LTI system whose input is x[n] and whose output is y[n]. The system is modeled by the following difference equation. \\ y[n]5y[n1]+6y[n2]=x[n] \\ & Find a mathematical expression for the output of the system if the input is u[n] and all initial conditions are equal to 1. \end{tabular}