重赏求极限lim(x^2*|y|^3)/2/(x^4+y^2),x→0y→0
lim(x→0y→1)(1+xe^y)^(2y+x/x)求极限
求下列各极限 lim(x,y)→(0,1) (2-xy)/(x^2+2y)
二元函数求极限:lim sin(x^2+y)/(x^2+y^2) x→0,y→0
二元函数求极限:lim (sin(x^2+y)) / (x^2+y^2) x→0,y→0
求极限 lim x→0 y→0[x^2+y^2+5/x+y sin(x+y)] 不懂极限,
求一个二元函数的极限lim((x^2)y+x^5)/(x^4+x^6+2(x^3)y+y^2))(x,y)->(0,0)
求极限lim(x,y)→(+∞,+∞) (xy/(x^2+y^2))^x^2
lim((x-y)/(x+y))求极限.(x,y)→(0,0)
求二重极限lim[xy/(1+x^2+y^2)],x→0,y→0.求详细步骤
求极限lim(y-x)x/根号下(x^2+y^2) x,y趋近于0
lim(x,y)→(0,0) (x^2)y/(2x-y)的极限存不存在
求极限lim(x→1 y→2) (x²+y²)/xy