设f(x)=x+x^1/3 则满足f(a-2)+f(1+a)≤0的a的范围 x^1/3表示x的三分之一次幂

设f(x)满足f(1/x)=x/1-x设设f(x)满足f(1/x)=x/1-x ,则f(x+1)=? 设f(x)满足3f(x)+2f(1/x)=4x,则f(x)=＿＿. 设f(x)满足f(x)+2f(1/x)=3x,则f(x)的表达式是? 设fx满足f(-x)+2f(x)=x+3,则f（1）等于 设函数f(x)满足f(x+x^-1)=x^3+x^-3,则f(x)的表达式是 设函数f(x)满足f(x)+2f(1/x)=x,求f(x) 设函数f(x)满足f(x)+2f(1/x)=2x+1,则f(x)= 设f(x)满足关系式f(x)+2f(-x)=3x,则f(x)= 设f(x)满足关系式f(x)+2f(1/x)=3x,求f(x) 设 f（x）满足关系式 f(x)+2f(1/x)=3x,求f（x）. 设f(x)满足关系式f(x)+2f(1/x)=3x,求f(x) 设函数F(X)=AX^2+BX+C(A>0),满足F(1-X)=F(1+X),设函数F(X)=AX^2+BX+C(A>0),满足F（1-X)=F(1+X),则F(2^X)与F(3^X)的大小关系是 设函数f(x)=ax^2+bx+c((a≠0),满足f(x+1)=f(-x-3),且f(-2)>f(2),解不等式f(-2x^2+2x-3)>f(x^2+4x+3) f(x)满足f(-x)+2f(x)=x+3,则f(1)等于 设函数f(x)满足f(x+1)-f(x)=2x+3且f(0)=0则f(-2)等于. 设f(x)满足2f(x)+xf(1/x)=x+1,则f(1/x)=_______ 设f(x)是二次函数,满足f(x+1)=x^2-x-1,则f(x)= 设函数f(x)=x^2-x+3,实数a满足/x-a/