f(x)=(x^2+4x+5)/(x^2+4x+4)求出单调区间,并比较f(-π）与f(-√2/2)的大小.急

f(x)=x^2+x (x 若函数f(x)满足f(x)+2f(1/x)=5x+4/x,则f(x)= x-2 ,X>=0 f(x)=f[f(x+5)],x分段函数f(x)= x-2 ,X>=0 f[f(x+5)],x 数学f(x)=x(x+1)(x+2)(x+3)(x+4)(x+5),求f'(0)=? 已知f(x)=x(x-1)(x-2)(x-3)(x-4)(x-5),则f‘(0)为 f(X)=f(X+2)(x f(x)=min{x^2-2,x,4-x} ① f(x)为一次函数,且f[f(x)]=1+4x,求f(x)② f(x)+2f（-x）=3x+x平方 ,求f(x)③ f(x)为一次函数,且f(x+1)+f(x-1)=2x平方-4x+4,求f(x)④ f(2x-1)定义域（-1,5],求f(2-5x)定义域,求f(x)定义域⑤ f(x)定义域[0,2] ,求f(x平方) f(x)=5x+3 f(x)=5x f(x)=x+2x+1 f(x)=5x+3 f(x)=5x f(x)=x+2x+1 f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)= 判断函数f(x)=x^2-4x+5,x>0 -x^2-4x-5,x f(x+1)+f(x-1)=2x²-4x,求f（x）? f(x+1)+f(x-1)=4x^3-2x求f(x) 设f（x)满足f(-x)=-f(x),f(x)=f(4-x),x∈[0,2)时,f(x)=x,则f(11.5)等于? f(x)=5x^2-4x-3f(x)=-3x^2+5x-8配方 已知f(x)=(x-1)(x-2)(x-3)(x-4)(x-5),则f'(1)=?求过程 函数f(x)=x^2+4x+5/(x^2+4x+4)做出图像 求f(x)=(x-2)/(x²-4x+5),且x