已知f(1)=1/4,4f(x)f(y)=f(x+y)+f(x-y),则f(2010)的值为多少?
已知函数f(x)满足f(1)=1/4,f(x)+f(y)=4f(x+y/2)*f(x-y/2)则f(-2011)=?
已知函数f(X)对任意的 、y均有4f(X)f(y)=f(X+y)+f(X-y)且f(1)=0.25,则f(2010)=
(1) f(x) (x∈R)为奇函数.f(1)=1/3,f(x+y)=f(x)+f(y),则f(b)的值
已知函数f(x)满足:f(1)=1/4,4f(x)f(y)=f(x+y)+f(x-y).则f(2010)=?(x,y属于
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
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)
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
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)={,则y=f【f(x)】-4的零点为
已知函数f(x)对于任意xy属于r都有f(x+y)=f(X)+F(Y),且f(2)=4 则f(-1)
已知函数f(x)满足f(2)=1/2,2f(x)f(y)=f(x+y)+f(x-y),则f(2012)=?