Question Number 33282 by abdo imad last updated on 14/Apr/18
$${study}\:{the}\:{sequence}\:{u}_{\mathrm{0}} ={a}>\mathrm{1}\:{and} \\ $$$${u}_{{n}+\mathrm{1}} =\frac{\mathrm{1}}{\mathrm{2}}\left({u}_{{n}} \:+\frac{{a}}{{u}_{{n}} }\right)\:. \\ $$
study-the-sequence-u-0-a-gt-1-and-u-n-1-1-2-u-n-a-u-n-