Question Number 33222 by prof Abdo imad last updated on 13/Apr/18 | ||
$${let}\:{give}\:{n}\:\geqslant\mathrm{3}\:{integr}\:\:{calculate} \\ $$$${I}_{{n}} =\:\int_{−\infty} ^{+\infty} \:\:\:\:\:\frac{{dx}}{\mathrm{1}+{x}\:+{x}^{\mathrm{2}} \:+....+{x}^{{n}−\mathrm{1}} } \\ $$ | ||