求极限lim(1/(x+1)-3/(x^3+1)) x趋于-1

lim(1-x)^3/x 求极限~ 求极限lim(1-2/x+3/x^2)^x lim x-∞ x2-1/3x2+x 求极限 lim*[ln(1+3X)]/sin4X {X->0}求极限lim*[ln(1+3X)]/sin4X {X->0} 求极限 lim(1+tan×)^1/x求极限 求极限lim x→∞ (x/(1+x))^x 求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限 求极限 lim [(3+x)/(6+x)]^[(x-1)/2]= x→∞求极限 lim [(3+x)/(6+x)]^[(x-1)/2]=x→∞ 求极限 lim/x-0 (根号x+1) -1/x 求极限lim(x->1)(x-1/x)/lnx 求极限,lim x趋于0 x * sin 1/x 求极限lim Ln(1+x) /x > .< x→0 求极限lim(x趋向无穷大)ln(1+x)/x 求极限 lim x趋向0(x+ex)1/x lim x ((根号x 平方＋1)-x )求极限 求函数几极限lim(x/1+x)^x 求函数极限：lim(x->0) (cos x)^(1/x) 求极限lim(x->负无穷大) (1/x+e^x)