1.lim(x_o){5x/[(1+x)^3-(1-x)^3]}2.若lim(x_无穷)[(1-x3次)^3-Ax-B]=0,则A=?,B=?

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1.lim(x_o){5x/[(1+x)^3-(1-x)^3]}2.若lim(x_无穷)[(1-x3次)^3-Ax-B]=0,则A=?,B=? 1.lim x->∞ (2x/x^2+1)*cosx 2..lim x->∞{ [(x^2-x)arctanx]/x^3-x-5}3..lim x->0 (e^x-e^-x-2x)/(x-sinx) 4..lim x->0 (sinx-x)/(x^3) 5..lim x->0 (x^2*tanx)/(x-tanx) 6..lim x->0 (1+3/x)^2x 7..lim x->0 (1+2x)^(3/sinx) 8.lim x->∞ (x/1+x)^(x-3) 9..li 数学难题,求指教~~极限到底是什么玩意我还不懂.1.lim(x^2-2x+6)2.lim(x^2-4)/(x-2)3.lim(x^2-6x=8)/(x^-5x=4)4.lim[1/(1-x)-1/(1-x^3)5.lim(sin2x)/x^26.lim(sin5x)/x7.lim(tan3x)/(sin7x)8.lim[(1+x)/x]^2x例如这道例题~lim[(1/3)x+1] 帮忙`````````一些求极限的数学题一.求极限1.lim 3x^+2x+1x→12.lim x^+3x+2/x的三次方+4x^+5x→03.lim x^-1/x-1x→14.lim x^-3x+2/1-x^x→15.lim sin2x/5xx→06.lim sin3x/tan2xx→07.lim (1+x)的x分之2次方x→08.lim (1+2/n)的n次 lim(1-(5/x))^x-2 lim(1-5/x)^x 1.x趋向0 lim (cosx-1)/x 2.x趋向0 lim sinx/x 1.lim (1-7x)^(4/x) (x趋近0)2.lim (4x-3)/ln(3+5e^x) (x趋近正无穷) lim(x-3/x+1)^x lim趋向无穷大 limit find the limit:lim(x->无限大)3x+5/x-4 =一共是3道题1.find the limit:lim(x->无限大)3x+5/x-4 等于2.find the limit:lim(x->负无限大)x^2+2/x^3+x^2-1 等于3.find the limit:lim(x->无限大)x+2/ 根号下9x^2+1 求特殊极限:1.lim(x->0) 2sinxcosx/(2x^2+x)2.lim(x->0) (tanx-sinx)/xcosx3.lim(x->0) (1+t/5)^(1/2t)4.lim(x->0) sin(sinx)/sinx5.lim(x->无穷) (1+2/x^2)^(x^2/4)我在温哥华上AP calculus所以洛必塔法则。i have no idea= = 这是assignme 1.lim x->0 sinx/ x 2.lim x趋于0 sin2x/3x 3.lim x趋于0 x乘以cot3x 4.lim x->无穷 sinx/2x 5.limx趋于无穷(1+X/X)2x 6.lim x->0(1+X)1/x 7.lim x->无穷(1-1/X)x 极限1.lim(4-1/n) n倾向于无穷 2.lim 3x²+5/x²-4x+7 x倾向于无穷3.lim(根号下3x+2- 根号下3x-1) x倾向于正无穷 4.lim 2x的三次方-3x+8/5-x的三次方 x倾向于无穷5.设fx=x²+1,x≥22x+1,x<2 ,试求lim f(x) x→ lim[(x-1)/(x+1)]^x lim (e-(1+x)^(1/x))/x lim(x+e^3x)^1/x lim(1-x)^(2/x) x->0 关于极限1.lim((x^-1) + (x^-4))/((x^-2) - (x^-3)) x-> 正无穷2.lim ((e^x) - (e^-x))/((e^x) + (e^-x)) x-> 负无穷