定义在r上的偶函数fx满足f(x)=f(x+2),x∈【3,4】时f(x)=x-2A f(sin0.5)<f(cos0.5)B f(sin(π/3))>f(cos(π/3))C f(sin1)<f(cos1)D f(sin1.5)<f(cos1.5)
问题描述:
定义在r上的偶函数fx满足f(x)=f(x+2),x∈【3,4】时f(x)=x-2
A f(sin0.5)<f(cos0.5)
B f(sin(π/3))>f(cos(π/3))
C f(sin1)<f(cos1)
D f(sin1.5)<f(cos1.5)
答