lim n趋向无穷大(3^n+2^n)/(3^（n+1）-2^（n+1）)=?

lim n趋向无穷大3n^3+n^2-3/4n^3+2n+1 lim (1+1/2n)^n n趋向于无穷大 lim(n趋向于无穷大 )(5n平方+n-2)/(3n平方-2) lim nsin(3x/n)=?n趋向于无穷大 lim√1+1/n^2 n趋向于无穷大 lim π^n/2^n+3^n.求极限lim n趋向于正无穷大.具体解算, lim π^n/(2^n+3^n).求极限lim n趋向于正无穷大.具体解算, lim n趋向无穷大 (2^3n-3^2n-1)/(2^3n+3^2n)=? lim n趋向无穷大(3^n+2^n)/(3^（n+1）-2^（n+1）)=? lim n趋向于无穷大n^5/e^n 紧急：求 lim n*sin(π(n^2+2)^0.5）*(-1)^n,n趋向无穷大； n趋向于无穷大,lim n[ln(n+2)-ln(n+1)], lim(2^n+3^n)^1 (n趋向无穷) lim[(n+3)/(n+1))]^(n-2) 【n无穷大】 lim[n/(n*n+1*1)+n/(n*n+2*2)+...+n/(n*n+n*n)],当x趋向无穷大时,怎么求极限, lim(n+20)/(3n+13)其中n趋向无穷大,怎么样求得1/3? 证明lim(n/(n^2+1))=0(n趋向于无穷大） 求lim(1+1/n+2)=n->0的极限?（n趋向无穷大）