若f(x)满足f(-x)=-f(x),且在区间(-∞,0)内是增函数,又f(-2)=0,则xf(x)

二次函数f(x)满足f(2+x)=f(2-x),且f(a) 函数 f(x)满足f(1)=1,且f(x)的导数f'(x) 二次函数f(x) 满足f(x)=f(-x),且f(-2) 若f(x)满足f(x)-2f(1/x)=x,则f(x)=? 若F(x)满足f(x)+2f(1/x)=x,则f(x)= f(x+y)=f(x)f(y),证f(x)是指数函数证明：若f(x)是非零连续函数,且满足f(x+y)=f(x)*f(y),则f(x)是指数函数. 设奇函数f(x)满足f(x+4)=f(x),且当0≤x 若奇函数f(x)(x∈R),满足f(2)=1,且f(x+2)=f(x)+f(2),求f(3). 已知f(x)满足f(x+3)=f(x),且f(x)是奇函数,若f(1)=根号2,求f(2009) 若定义域为R函数f(x)满足f(x+y)=2*f(x)*f(y),且f(0)不等于0,证明f（x）是偶函数 一次函数F(X)满足f(f(x))=4x且f(1)小于0.则f(x)等于 函数f(x)满足f'(x)=f(x)+1,且f(0)=0,则f(x)=______ f'(x)是f(x)的导数, 设f(x)满足f(x)+f'(x)+f(x)=e^x+2,且f(0)=1,f'(0)=0,求f(x) 若一次函数f(x)满足f[f(x)]=1+4x,求f(x) 若一次函数f(x) 满足f[f（x)]=1+2x 求f(x) 证明:若函数f(x)在满足关系式f'(x)=f(x),且f(0)=1,则f(x)=e^x 证明：若函数f(x)在(-oo,+oo)内满足关系式f'(x)=f(x),且f(0)=1,则f(x)=e^x 证明:若函数f(x)在满足关系式f'(x)=f(x),且f(0)=1,则f(x)=e^x如题