y=f(x)=e^│x│/x定义域x∈R,x≠0f(-x)=e^|-x|/(-x)=-e^|x|/x=-f(x)∴f(x)是奇函数,图像关于原点对称当x>0时,f(x)=e^x/xf'(x)=e^x(x-1)/x∴0<x<1,f'(x)<0,f(x)递减   x>1,f'(x){...