问题
填空题
设函数f(x)=
|
答案
∵5<10,∴f(5)=f(f(5+5))=f(f(10))=f(7)
∵7<10,∴f(7)=f(f(7+5))=f(f(12))=f(9)
f(9)=f(f(9+5))=f(f(14))=f(11)=11-3=8
故答案为:8
设函数f(x)=
|
∵5<10,∴f(5)=f(f(5+5))=f(f(10))=f(7)
∵7<10,∴f(7)=f(f(7+5))=f(f(12))=f(9)
f(9)=f(f(9+5))=f(f(14))=f(11)=11-3=8
故答案为:8