Question Number 152443 by fotosy2k last updated on 28/Aug/21
Commented by fotosy2k last updated on 28/Aug/21
$${pls}\:{help}\:{me} \\ $$
Commented by mr W last updated on 28/Aug/21
$${when}\:{you}\:{post}\:{a}\:{question},\:{other} \\ $$$${people}\:{know}\:{that}\:{you}\:{need}\:{help}.\:{there} \\ $$$${is}\:{no}\:{need}\:{to}\:{ask}\:{extra}\:``{help}\:{me}''. \\ $$$$ \\ $$$${a}_{{n}} =\frac{{n}−\mathrm{1}}{{n}+\mathrm{1}}=\frac{{n}+\mathrm{1}−\mathrm{2}}{{n}+\mathrm{1}}=\mathrm{1}−\frac{\mathrm{2}}{{n}+\mathrm{1}} \\ $$$${it}'{s}\:{increasing}. \\ $$