问题
填空题
设函数f(x)=
|
答案
因为函数f(x)=
,x-3 (x≥2020) f(x+4)+1 (x<2020)
则f(2011)=f(2011+4)+1
=f(2015)+1
=f(2015+4)+2
=f(2019)+2
=f(2019+4)+3
=f(2023)+3
=2023-3+3
=2023.
故答案为:2023.
设函数f(x)=
|
因为函数f(x)=
,x-3 (x≥2020) f(x+4)+1 (x<2020)
则f(2011)=f(2011+4)+1
=f(2015)+1
=f(2015+4)+2
=f(2019)+2
=f(2019+4)+3
=f(2023)+3
=2023-3+3
=2023.
故答案为:2023.