求lim(x,y)~(0,1)1-xy/x^2+y^2的极限,要详解

问题描述:

求lim(x,y)~(0,1)1-xy/x^2+y^2的极限,要详解

lim{(x,y)→(0,1)}(1-xy)/(x²+y²) = (1-0)/(0+1) = 1