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let-x-arctan-x-x-2-3-developp-at-integr-serie-




Question Number 135375 by Bird last updated on 12/Mar/21
let ϕ(x)=((arctan(x))/(x^2 +3))  developp ϕ at integr serie
$${let}\:\varphi\left({x}\right)=\frac{{arctan}\left({x}\right)}{{x}^{\mathrm{2}} +\mathrm{3}} \\ $$$${developp}\:\varphi\:{at}\:{integr}\:{serie} \\ $$

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