1.lim ([x]-|x|)x->1-2.lim (1-cosx)/xx->派/3这道题的答案是3/(2派)

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 1.x趋向0 lim (cosx-1)/x 2.x趋向0 lim sinx/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 lim（x-3/x+1）^x lim趋向无穷大 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 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 lim x趋向1 x-x^x/(1-x+lnx) (lim) x/(x-y) 1.lim[(1+x)/(2+x)]^(1-√x/1-x)(x--->0+)2.lim[(x+2)/(2x-1)^(x^2)(x--->0) 说明极限不存在的原因1.lim x→0 (x/|x|)2.lim x→1 (1/x-1) 1.lim x→0 3x/(sinx-x)2.lim x→0 (1-cosmx)/x^23.lim x→0 sin4x/[(√x+2)-√2]4.lim h →0 [sin(x+h)-sin(x-h)]/h 数学极限题Lim x^x-x/(1+lnx-x)Lim x^x-x/(1+lnx-x)x→1 1.lim x->无穷 x*sin(2x/(x^2+1)) 22.lim x->正无穷 ((x^2-1)/(x^2+1))^(x^2) e^-2 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-sinx)^1/x lim x趋于零