求Lim[1/1*2+1/2*3+1/3*4+……+1/n（n+1）]^n

求极限lim 2/(3^n-1) 极限的简单运算lim an=3, lim bn=1/3, 求lim ((an-3bn)/2an) lim(2an+4bn)=1 lim(3an-bn)=2 求lim(an+bn) lim(2an+4bn)=1 lim(3an-bn)=2 求lim(an+bn) 数列极限的运算lim an/(an+1) =2 求lim 2anlim (2n+1)*an=3 求lim n*an 求极限lim(1-2/x+3/x^2)^x 求lim n→∞ (1+2/n)^n+3 求1.lim(3n-(3n^2+2n)/(n-1)) 2.lim(8+1/(n+1)) 3.lim根号n(根号(n+1)-根号(n-3)) lim(1-x)^3/x 求极限~ 求极限 lim x→π/2 (sin2x)^3 lim x→0 根号(1+x^2)-1/x 求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限 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 求lim(1-cosx)/x^2求lim(1-COSX)/X^2X→0 求高手做高数题!1、求lim(x→0)（1-2x)^1/x 2、求lim(x→0) (tanx-sinx)/sin^3x {An}{Bn},若lim(3An+Bn)=8,lim(6An-Bn)=1求lim(4An-Bn)与lim(AnBn)的值 lim(1+2x)^1/x求极限（lim下是x~0) 若lim[(2n-1)an]=1 求lim(n*an)的值