n趋向无穷,求极限(3n+1)/(3n-1)的2n+3次方

求极限 n趋向无穷 2^n+1 + 3^n+1/2^n+3^n n趋向无穷,求极限(3n+1)/(3n-1)的2n+3次方 求极限 lim (1+2+3+...+n/n+2-n/2)趋向是正无穷lim (1+2+3+...+n/(n+2)-n/2)趋向是正无穷 lim n趋向正无穷 求(1+1/n^3)^n的极限 求lim(-1+3^n)/2^(n+1)的极限(N趋向正无穷) 求极限 lim 【（1+2+3+...+n）/（n+2）-n/2】趋向是无穷 微积分求极限 n趋向于无穷 (根号(n^4+n+1)-n^2)(3n+4) 为什么是1.5 x趋向于无穷,(1-3/n)的n次方,求极限 {[(1+n)(2+n)(3+n)……(n+n)]^(1/n)}/n当趋向正无穷 求其极限 求极限 N趋向于正无穷时 1/(n^2+1^2)+2/(n^2+2^2)+3/(n^3+3^2)+...+n/(n^2+n^2) 当n趋向无穷lim 3∧n×tanx/3∧n求极限 3^n乘以sin(π/3^n) n趋向于无穷时 求极限! n^2/3^n当n趋向于无穷时求极限 （2＋（2／3）^1／n)^n,求当n趋向于正无穷的极限 求极限 n*sin(x/n) n趋向无穷 求 证Lim ( n/ n2+1) + (n/ n2+2) +( n/ n2+3).+(n/n2+n)当n趋向无穷时的极限为1 lim(2^n+3^n)^1 (n趋向无穷) (n+2)^3/(n+1)^4的极限(当n趋向于无穷)