老大,你的表达法真特别!是不是:f(x)=axg(x)=b/xf(2)*g(1/2)=-8f(1/3)+g(3)=1/3so, f(2)=2a g(1/2)=2b f(1/3)=a/3 g(3)=b/3so,f(2)*g(1/2)=2a*2b=-8 即ab=-2 f(1/3)+g(3)=a/3+b/3=1/3 即a+b=1联立ab=-2 a+b=1解得:a=-1或2, b=2或-1 哎呀,有人比我快