函数f(x)=log(a)(x^2-ax+5)(a>0且a不等于1)满足对任意的x1x2,当x1
函数f(x)=log(a)(x^2-ax+5)(a>0且a不等于1)满足对任意的x1x2,当x1
函数f(x)=loga(x^2-ax+3),(a>0且a不等于1)满足对任意x1,x2当x1
已知函数f(x)=ax-x^3,当x1,x2属于(0,1),且满足x1x2-x1恒成立,求a的取值范围~
已知函数f(x)=ax-x^3,当x1,x2属于(0,1),且满足x1x2-x1恒成立,求a的取值范围
函数f(x)=-(x-1)^2(x=1)满足对任意x1不等于x2,都有(f(x1)-f(x2))/x1-x2>0,求a取
已知函数f(x)=log a^x+b(a大于0,a不等于1),对定义域内的任意x,y都满足f(x/y)=f(x)-f(y
已知二次函数f(x)=ax^2+bx+c,若对任意x1x2∈R,且x1<x2,f(x1)不等于f(x2),试证明存
已知函数f(x)=ax*2 bx c,(a不等于0)满足f(0)=0,对任意x属于R都有f(x)大于等于x,且f((-1
设函数f(x)定义域(0,+∞),且f(4)=1,对任意正实数x1x2,有f(x1x2)=f(x1)+f(x2),且当x
f(x)=loga(x^2-a*x+1)(a>0且a≠1)满足:对任意实数x1,x2,当x1<x2≤a/2时,总有f(x
设函数y=f(x)(x属于R,且x不等于0),对任意非零实数x1,x2.满足f(x1)+f(x2)=f(x1x2)
函数f(x)的定义域为D={x|x不等于零},且满足对于任意x1,x2∈D,有f(x1x2)=f(x1)+f(x2);