定义在R上的奇函数f(x)满足f(x+2011)=f(x),则f(2011
问题描述:
定义在R上的奇函数f(x)满足f(x+2011)=f(x),则f(2011
答
f(0)=0,f(0+2011)=f(0),f(2011)=0
答
f(x)= -f(-x)
put x=0
=> f(0) =0
f(x+2011) = f(x)
put x=0
f(2011) = f(0) = 0
答
f(x)是奇函数
所以f(0)=0
f(x+2011)=f(x)
令x=0
所以f(2011)=f(0)=0