问题:
函数f(x)由表定义:若a 0=5,a n+1=f(a n),n=0,1,2,…,则a 2009=______
x
2
5
3
1
4
f(x)
1
2
3
4
5
函数f(x)由表定义:若a 0=5,a n+1=f(a n),n=0,1,2,…,则a 2009=______
x | 2 | 5 | 3 | 1 | 4 |
f(x) | 1 | 2 | 3 | 4 | 5 |
参考答案: