lim(n->无穷)[(1+3+5+.(2n+1)]/n^2]^(3-2n)

求极限 lim(n->无穷)[(3n^2-2)/(3n^2+4)]^[n(n+1)] lim(n趋于无穷)[n(n+1)/2]/n方+3n的极限是多少? 求极限：lim((2n∧2-3n+1)/n+1)×sin n趋于无穷 高数求极限lim（1+2^n+3^n)^1/n n趋近于无穷 求极限lim(1+2^n+3^n)^1/n.n-->无穷. lim(n→正无穷)【n+2/n+1】的3n次方 高数 lim n趋向无穷 lim（3^(1/n)-1)ln(2+2^n) lim(n->无穷)[(3n^2+cn+1)/(an^2+bn)-4n]=5 lim[(n+3)/(n+1))]^(n-2) 【n无穷大】 lim n趋近无穷 3n^3+n^2-3/4n^3+2n+1的极限 求极限 lim n趋于无穷 3n²+2n-1/2n²+n-10 lim(3^2n+5^n)/(1+9^n)