Question Number 34694 by math khazana by abdo last updated on 09/May/18
$${find}\:{lim}_{{n}\rightarrow+\infty} \:\:\sum_{{k}={n}} ^{\mathrm{2}{n}−\mathrm{1}} \:\:\frac{\mathrm{1}}{\mathrm{2}{k}+\mathrm{1}}\:. \\ $$
find-lim-n-k-n-2n-1-1-2k-1-