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Question Number 34606 by abdo mathsup 649 cc last updated on 08/May/18

let give p(x)=(x+1)^n  −(x−1)^n   1) factorize p(x) inside C[x]  2) find the value of Π_(k=1) ^p   cotan(((kπ)/(2p+1)))

$${let}\:{give}\:{p}\left({x}\right)=\left({x}+\mathrm{1}\right)^{{n}} \:−\left({x}−\mathrm{1}\right)^{{n}} \\ $$$$\left.\mathrm{1}\right)\:{factorize}\:{p}\left({x}\right)\:{inside}\:{C}\left[{x}\right] \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{value}\:{of}\:\prod_{{k}=\mathrm{1}} ^{{p}} \:\:{cotan}\left(\frac{{k}\pi}{\mathrm{2}{p}+\mathrm{1}}\right) \\ $$

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