Menu Close

Category: Algebra

let-give-p-x-x-1-n-x-1-n-1-factorize-p-x-inside-C-x-2-find-the-value-of-k-1-p-cotan-kpi-2p-1-

Question Number 34606 by abdo mathsup 649 cc last updated on 08/May/18 $${let}\:{give}\:{p}\left({x}\right)=\left({x}+\mathrm{1}\right)^{{n}} \:−\left({x}−\mathrm{1}\right)^{{n}} \\ $$$$\left.\mathrm{1}\right)\:{factorize}\:{p}\left({x}\right)\:{inside}\:{C}\left[{x}\right] \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{value}\:{of}\:\prod_{{k}=\mathrm{1}} ^{{p}} \:\:{cotan}\left(\frac{{k}\pi}{\mathrm{2}{p}+\mathrm{1}}\right) \\ $$ Terms of Service…

let-p-C-x-degp-n-x-i-1-k-n-the-roots-of-p-x-a-C-p-a-0-1-calculate-S-1-k-1-n-1-x-k-a-interms-of-p-p-and-a-2-calculste-S-2-k-1-n-1-x-k-a-2-interms-of-p-p-

Question Number 34607 by abdo mathsup 649 cc last updated on 08/May/18 $${let}\:{p}\in{C}\left[{x}\right]\:{degp}={n}\:\:\:\left({x}_{{i}} \right)_{\mathrm{1}\leqslant{k}\leqslant{n}} {the}\:{roots}\:{of}\:{p}\left({x}\right) \\ $$$${a}\in{C}?/{p}\left({a}\right)\neq\mathrm{0} \\ $$$$\left.\mathrm{1}\right)\:{calculate}\:{S}_{\mathrm{1}} =\:\sum_{{k}=\mathrm{1}} ^{{n}} \:\frac{\mathrm{1}}{{x}_{{k}} −{a}}\:{interms}\:{of}\:{p},{p}^{'} \:{and}\:{a} \\…