题目内容
(1)已知f(2x+1)=x2-2x,则f()=________.
(2)已知f(+1)=,则f(x)=________.
(3)已知f(x+)=x2+,则f(x)的解析式为________.
(1);(2)x2-2x(x≠1);(3)f(x)=x2-2.
(1)已知f(2x-1)=ex,则f(x)=________.
(2)f(cosx-1)=sin2x,求f(x)=________.
(3)f()=,则f(x)=________.