设f(x)是定义在R上的奇函数,当x≤0时,f(x) = 2x2-x,则f(1)=( )
A.-3 | B.-1 |
C.1 | D.3 |
(2)设奇函数y=f(x)(x∈R),满足对任意t∈R都有f(t)=f(1-t),且x∈时,f(x)=-x2,则f(3)+f的值等于________.
推荐套卷
设f(x)是定义在R上的奇函数,当x≤0时,f(x) = 2x2-x,则f(1)=( )
A.-3 | B.-1 |
C.1 | D.3 |
(2)设奇函数y=f(x)(x∈R),满足对任意t∈R都有f(t)=f(1-t),且x∈时,f(x)=-x2,则f(3)+f的值等于________.