已知函数y=f(x)(x∈R)满足f(x+3)=f(x+1),若x∈[-1,1]时,f(x)=|x|,则y=f(x)与y
若函数y=f(x)(x∈R)满足f(x+2)=f(x),且x∈(-1,1]时f(x)=|x|,则函数y=f(x)的图像y
已知函数f(x)满足:f(1)=14,4f(x)f(y)=f(x+y)+f(x-y)(x,y∈R),则f(2010)=(
已知函数f(x)满足:f(1)=1/4,4f(x)f(y)=f(x+y)+f(x-y) (x ,y∈R),则f(2010
已知函数y=f(x)满足f(x)=2f(1x
设函数y=f(x)(x属于R)满足f(x+2)=f(x)且x属于(-1,1]时f(x)=|x|函数y=f(x)的图像与y
函数的性质及应用.已知函数f(x)满足f(2)=1//2 ,2f(x)f(y)=f(x+y)+f(x-y)(x,y∈R)
已知函数f(x)满足:对任意x,y∈R,都有f(x+y)=f(x)•f(y)-f(x)-f(y)+2成立,且x>0时,f
已知函数f (x )满足f(1)=1/4,4f(x)f(y)=f(x+y)+f(x-y)(x,y属于R),则f(2010
若定义在R上的偶函数f(x)满足f(x+2)=f(x),且当x∈[0,1]时,f(x)=x,则函数y=f(x)=log3
若定义在R上的偶函数f(x)满足f(x+2)=f(x),且当x∈[0,1]时,f(x)=x,则函数y=f(x)-log3
已知偶函数y=f(x)(x∈R)满足f(x+1)=f(x-1),且x∈[0,1]时,f(x)=x,则方程f(x)=|lo
已知函数f(x)对于任意的x,y∈R都满足f(x+y)=f(x)+f(y),且当x>0时f(x)>0恒成立 证明f(x)