lim x趋向于1 [1/(x^2-3x+2)-2/(x^2-4x+3)]=

lim(1+3x)^(2/x)x趋向于零 lim(1-2x)^1/x x趋向于0 lim(x趋向于无穷)(1+3/x)^(x-3) lim(1+3x)^3/x x趋向于0 lim(x趋向于0)(x*cotx-1)/(x^2) 求极限,lim(x趋向于1)(x^2-2x+1)/(x^3-x) f(x)={x x=1}求lim x趋向于1- f(x) lim x趋向于1+ f(x) lim趋向于1 f(x)f(x)={2x-1 x0} 求lim x趋向于0- f(x) lim x趋向于0+ f(x) lim趋向于0 f(x) (1-x)tan(πx/2),lim 趋向于1, lim（x趋向于0）（1-cosx)/x^2 求lim x趋向于0(arctanx)/(x^2+1) x趋向于无穷时 lim (3x-1)/(x^3 乘以 sin(1/x^2 )) 求极限lim(x趋向于1)x+3x+2/x+1 lim(x^2+x+a)/(x-1)=3 X趋向于1 求a 求lim x趋向于无穷时(-X)/(2X^2+3x-1)答案 求lim[(3-2x)/(1-2x)]的x次方x趋向于∞ 1.lim x趋向于无穷大sinx/x+1=? 2.lim x趋向于无穷大(1+2/x)^x+3=? lim(x趋向无穷)[1-(2/x)]^3x lim【sin(x^3-1）|(x^2-1)】x趋向于1