f(x)=(√(x²+1)-x)/(x-√(x²-1))
f(x)=(√(x²+1)-x)/(x-√(x²-1))
F(x)=3x²+2x-1
(1) f(x)=X²+3x 求(X+1)与f[f(x)]
1、设f(x)=1+x²/1-x²,求证f(1/x)=-f(x)
(1)函数f(x)=√2x-x²的定义域是( );
f(x+1)=x²-4
已知函数f(x)=x²+lg(x+√x²+1),若f(a)=M,则f(-a)等于
f(x+1)=x²6x+2,则f(x)=?
已知函数f(x)= log1/2 (x+√(x²-2))的反函数为f-1(x)
计算:[(x²-2x+1)/(x²-1)]÷[(x-1)(x²+x)]-x
(1)(x²-2x)²+2(x²-2x)+1
(x²-2x)²+2x²-4x+1