求下列的极限:lim(1/n·cosn) n→∞
求极限 lim (cosnπ/2)/n
求极限lim(x→无穷)1/n{(1+cosπ/n)^(1/2)+.+(1+cosn*π/n)^(1/2)} ..
求下列数列极限,lim ([根号下n的平方+1]-n) n→∞
求极限:lim(x→0)[cosx+cos^x+cos3(次方)x+……+cosn(次方)x] /(cosx-1),[n
求极限 1.lim(sinn-3n)/(5n+cosn) n趋向无穷
lim(n→∞) ((2n!/n!*n)^1/n的极限用定积分求
求极限lim(x→∞)(1/n+2/n+3/n..+n/n)
求极限lim(n→∞)
求lim(n→无穷)(根号(n+1)-根号n)*根号n 的极限
求极限:lim(n→∞)[(3n+1 )/(3n+2)]^(n+1)
lim(1/n+2^1/n)^n n→∞求详解!高数极限
(3n-sinn)/(2n+cosn)怎么求它的极限啊?