单项选择题
Try to solve the difference equation 48y (n + 4) -76y (n + 3) + 44y (n + 2) -11y (n + 1) + y (n) = 2u (n + 2) + 3u (n + 1) + u (n), where y (0) = 1, y (1) = 2, y (2) = 0, y (3) = -1, and enter u (n) = (1/5) ^ n, the correct solution to the difference equation is:
A、syms z n; u=(1/5)^n; y=diff_eq([48 -76 44 -11 1],[2 3 1],[1 2 0 -1])
B、syms z n; u=(1/5)^n; y=diff_eq([48 -76 44 -11 1],[2 3 1],[1 2 0 -1],U)
C、syms z n; u=(1/5)^n; U=ztrans(u);y=diff_eq([48 -76 44 -11 1],[2 3 1],[1 2 0 -1],U)
D、syms z n; u=(1/5)^n;;y=diff_eq([48 -76 44 -11 1],[2 3 1],[1 2 0 -1],u)