高数:lim(x→0,y→0)2XY/(XY-1)开根-1
高数:x→0,y→2lim[ln(x+e^xy)/x]=?
数学极限计算lim(x,y)→(0,0) xy/ [√(2-e^xy)-1]= lim(x,y)→(0,0) -xy/(
求极限lim(x,y)→(0,0) [1-cos(xy)]/xy^2.
求下列各极限 lim(x,y)→(0,1) (2-xy)/(x^2+2y)
求极限lim x→0 y→0 2xy/根号下1+xy 然后-1 {不在根号里}
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求极限:lim xy分之{[(1+xy)开3次根号]-1},(x,y)→(0,0)
二元函数求极限问题lim[﹙2-e^xy﹚^1/2]-1=lim1/2(1-e^xy)(x,y)→(0,0) (x,y)
求二重极限lim[xy/(1+x^2+y^2)],x→0,y→0.求详细步骤
lim(x,y)→(0,1) (1+xy)^1/x 求大神帮忙,谢谢~
求极限lim(x→1 y→2) (x²+y²)/xy
跪求极限Y=lim (xy+1)/x^4+y^4,当(x,y)→(0,0),