lim（n→∞) {[4/5-6/7+4/(5^2)-6/(7^2)+...+4/(5^n)-6/(7^n)]/[5/6-4/5+5/(6^2)-4/(5^2)+...+5/(6^n)-4/(5^n)]}=( )A.-1 B.0 C.1 D.6/7

计算下列极限：1）lim(n→∞) 1/n3 2）lim(n→∞)4n+1/3n-11）lim(n→∞) 1/n3 2）lim(n→∞)4n+1/3n-13) lim(n→∞) (1/3)n4)lim(n→∞)n3+2n-5/5n3-n 5) lim(n→∞)(1+1/2n)n 6) lim(n→∞)2x3-x2+1/3x2+2x-9 7) lim(x→0 )sin3x/sin7x8) lim(n→∞)3n^2+5n-7/4-n^2的值是 用数列极限证明lim(n→∞)(n^-2)/(n^+n+1)=1中证明如下:lim(n→∞)3n+1/5n-4 1.对于数列{an},已知lim n→∞ n*an=5,求lim n→∞(3n+7)an的值2.已知a≠0,计算lim n→∞[(a+a^3+a^5++a^(2n+1)）/(a^2+a^4+a^6++a^2n)] 大一微积分解答：lim(n→+∞)（2^n+4^n+6^n+8^n）^1/n=? 数列极限计算lim(7n+4)/(5-3n) lim n→∞ [(n+1)^4/5^(n+1)]/[n^4/5^n]为何等于1/5, lim((5^n-4^(n-1))/((5^(n+1)+3^(n+2)) n→∞时的极限是多少? 求lim(n→∞)时[5^n-4^(n-1)]/5^(n+1)+3^(n+2) lim(n→∞) (3^n-4^n)/(3^n+2×4^n),请计算, lim {（-4）^n+5^n}/{4^(n+1) + 5^(n+1)} n→无限 求极限 lim(n→∞) tan^n (π/4 + 2/n) lim(n→∞)tan^n(π/4+2/n) =lim(n→∞)[(tan(π/4)+tan(2/n))/(1-tan(π/4)tan(2/n))]^n =lim(n→∞)[(1+tan(2/n))/(1-tan(2/n))]^n =lim(n→∞)(1+tan(2/n))^n/(1-tan(2/n))^n (1) 因为 lim(n→∞)(1+tan(2/n) 几道大学数学求极限的题1,lim(n→∞)（1^n+2^n+3^n+4^n）^n2,lim(x→π／6)｛（1-2sinx)／(sin(x-π／6))3,lim(x→0){(sinx³)tanx)／(1-cosx²)}4,lim(x→+∞)[㏑(a+x)-㏑x]／x5,lim(x→0)[㏑√(1+5x)]／x2楼第五题不是 lim(n→∞) 2的2n次方-8/4n次方+3n次方 求当n→∞,Lim(1+2+3+4+……+(n-1)+n)/n lim[(4+7+...+3n+1)/(n^2-n)]= lim(1/n+2/n+3/n+4/n+5/n+……+n/n)=lim(1/n)+lim(2/n)+……+lim(n/n)成立吗?（n趋近于无穷大）为什么不成立? x→∞时lim[(2n+1)^5(3n-5)^4]/(2n-3)^9=?