设集合A={-1,0,1},B={3,4,5,6,7},映射F:A→B满足:对任意x∈A,都有x+f(x)+x·f(x)
设集合A={-1,0,1},B={3,4,5,6,7},映射F:A→B满足:对任意x∈A,都有x+f(x)+x·f(x)
设集合A={1,2,3,},B={2004,2005,2006,2007,2008},映射f:A→B,使对任意x∈A,都
已知集合A={1,2,3,},有映射f:A至A满足对任意的x∈A,有f(f(x))=f(x).求满足上述条件的映射f的个
设f:x→3x-1是集合A到集合B的映射,若A={1,a},B={5,a},则a=
设集合M={-1,0,1},N={2,3,4,5,6},映射f:M→N,使对任意x∈M,都有x+f(x)+xf(x)是奇
设集合A={0,1},试写出满足f[f(x)]=f(x)的所有映射f:A→A.
设集合A={0,1},试写出满足f[f(x)]=f(x)的所有映射f:A→A
设集合A={0,1},试写出满足f[ f(x)]=f(x)的所有映射f:A→A.
设集合A=B={(x,y)|x∈R,y∈R},f是A到B的映射,并满足f:(x,y)→(-xy,x-y).(1)求B中元
函数f(x)对任意的a.b∈R;都有f(a+b)=f(a)+f(b)-1并且当x>0时f(x)>1若f(4)=5解不等式
高一函数单调性设函数y=f(x),x∈R,当x>0时,f(x)>1,对任意a.b∈R,有f(a+b)=f(a)·f(b)
如果函数f(x)满足,对任意实数a,b都有f(a+b)=f(a)f(b),且f(1)=2,则