If \(A=\begin{bmatrix} 0 & 5 \\\ 0 & 0 \end{bmatrix}\) and \(\rm f(x)= I + x+x^2 + ...+x^{16},\) then \(f(A)=\)
1
0
2
\(\begin{bmatrix} 1 & 5 \\\ 0 & 1 \end{bmatrix}\)
3
\(\begin{bmatrix} 1 & 5 \\\ 0 & 0 \end{bmatrix}\)
4
\(\begin{bmatrix} 0 & 5 \\\ 1 & 1 \end{bmatrix}\)
5
Not Attempted