11.定义在R上的偶函数f(x)满足f(x)=f(x+2),当x∈[3,5]时,f(x)=2-|x-4|,则
(A)f(sin
)<f(cos
)
(B)f(sin1)>f(cos1)
(C)f(cos
)<f(sin
)
(D)f(cos2)>f(sin2)
- 答案
11.定义在R上的偶函数f(x)满足f(x)=f(x+2),当x∈[3,5]时,f(x)=2-|x-4|,则
(A)f(sin
)<f(cos
)
(B)f(sin1)>f(cos1)
(C)f(cos
)<f(sin
)
(D)f(cos2)>f(sin2)