求lim x→∞ (1+2∧n+3∧n)∧(1/n)的极限,请用夹逼法则,不好意思，是n→∞.

求极限lim(x→∞)（1/n+2/n+3/n..+n/n） 求极限lim(-2)^n+3^n/(-2)^[n+1]+3^[n+1] (x→∞) 求lim n→∞ (1+2/n)^n+3 求极限 x→∞lim(3^n+1)/(3^(n+1)+2^n)= 求lim x→∞ (1+2∧n+3∧n)∧(1/n)的极限,请用夹逼法则,不好意思，是n→∞. 1.6求极限lim(x→∞) [1+2+3+......+(n-1)]/ n^21.6求极限lim(x→∞) [1+2+3+......+(n-1)]/ n^2 求极限lim [ 2^(n+1)+3^(n+1)]/2^n+3^n (n→∞) lim n →∞ (1^n+3^n+2^n)^1/n,求数列极限 1.7求极限lim(x→∞) [(n+1)(n+2)(n+3)]/5 n^31.7求极限lim(x→∞) [(n+1)(n+2)(n+3)]/5 n^3 lim∧(x→∞)(1＋2∧n＋3∧n)∧1/n＝? lim(x→∞)(1＋2∧n＋3∧n)∧(1 /n)＝? 大学微积分的题目 lim(x→∞)(1^n+2^n+3^n)^1/n 求极限：lim((2n∧2-3n+1)/n+1)×sin n趋于无穷 求lim(n→∞)(3n^3+2n^2+1)/(2n^2+3) 求极限lim(n→∞)(3n^2-n+1)/(2+n^2)? 求当n→∞,Lim(1+2+3+4+……+(n-1)+n)/n 求极限Lim(n→∞)2∧(n＋1)＋3∧(n＋1)/2∧n＋3∧n 求极限lim(x→+∞) (x^n/e^x).下面是解题过程：由题可知,当x→+∞时,此极限为∞/∞型,由洛必达法则,得 lim(x→ +∞ )(x^n/e^x)=lim(x→+∞)[nx^(n-1)/e^x)=lim(x→+∞)[n(n-1)x^(n-2)/e^x]=lim(x→+∞)[n(n-2)x^(n-3)/e^x