已知lnx ≤ x-1 求证ln(2^2)/2^2+ln(3^2)/3^2+……ln(n^2)/n^2<(2n^2-n+
证明:ln 2/3+ln 3/4+ln 4/5+……+ln n/(n+1)1)
用数学归纳法证明证明:ln(1+1*2)+ln(1+2*3)+……+ln[1+n(n+1)]>2n-3(n属于N*)
已知函数f(x)=lnx+a/(x+1)(a属于R),求证ln(n+1)>1/3+1/5+1/7+...+1/(2n +
级数ln n/n^2的收敛性
ln(2n^2-n+1)-2ln n.当n趋于正无穷是的极限
n趋向于无穷大,lim n[ln(n+2)-ln(n+1)],
设M,N为正整数,且M>N.求证:(M-N)/(ln M - ln N ) < (M+N)/2
ln(2n+3)/(2n+1)求极限
定积分求极限有关问题1/n[ln(1+1/n)+ln(1+2/n)+……+ln(1+(n-1) / n)]=∫(1,0)
导数练习的证明题ln(n+2)-ln(n+1)>1/(2n+3)n>2
对于任意正整数n,求证:ln(1/2+1/n)>1/n^2-2/n-1
求证ln2/(2^4)+ln3/(3^4)+……+ln n/(n^4)