(lim) x/x-y=
(lim) x/x-y=
多元函数极限lim sin(xy)/x (x.y) -> (0.2) = lim {[sin(xy) / xy ] *
数学题 (lim)X→0 Y→0 x/(x-y)=?
y=|x| 求lim [f(x)/x] x趋近于零的极限
y=lim (x → 0) ( √1+xsinx - √cosx) / arcsin^2x.y=lim (n → ∞)
高数:x→0,y→2lim[ln(x+e^xy)/x]=?
证明lim(x,y)→(0,0),xy/根号(x²+y²)=0
证明下列极限不存在(1) Lim x+y/x-y (2)lim x²y²/ x²y&sup
证明 lim x-无穷大 cos2n/(n+1)=0 2.设数列xn有界 lim x-无穷 y
就这几道题,谢谢你了1 lim(1-[√(1+m)]/x) X趋向02 lim((x-3)/x-1) x趋向无穷3 y=
多元函数极限求解lim(x→∞,y→∞)((x+y)/(x^2+xy+y^2))=?
lim(x+y)ln(x^2+y^2)=?(x,y)-(0,0) 谁帮忙做下.