n趋向于无穷大,(（2n+3）/(2n+1) )的（n+1）次方的极限

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) 求极限(n+4/n+3)∧2n.n趋向于无穷大 n趋向于无穷大,(（2n+3）/(2n+1) )的（n+1）次方的极限 lim√1+1/n^2 n趋向于无穷大 证明lim(n/(n^2+1))=0(n趋向于无穷大） lim(n^2(cos1/n-1))(n趋向于无穷大） (3^n+(-2)^n)/(3^(n+1)+(-2)^(n+1))这个n趋向于无穷大的极限? 3^(n+1)-2^n/2^(n+1)+3^n 当n趋向于无穷大时 求极限 当N趋向于无穷大2/N^2+...+2N/N^2的极限 求极限根号下n的平方加上2n减去n.n趋向于无穷大. n趋向于无穷大,lim n[ln(n+2)-ln(n+1)], 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3n^3+n^2-3/4n^3+2n+1 lim n趋向无穷大(3^n+2^n)/(3^（n+1）-2^（n+1）)=? lim nsin(3x/n)=?n趋向于无穷大 求证：1/n(n趋向于无穷大）不等于0