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calculate-0-arctan-2-x-2-x-2-9-dx-




Question Number 118475 by mathmax by abdo last updated on 17/Oct/20
calculate ∫_0 ^∞  ((arctan(2+x^2 ))/(x^2 +9))dx
$$\mathrm{calculate}\:\int_{\mathrm{0}} ^{\infty} \:\frac{\mathrm{arctan}\left(\mathrm{2}+\mathrm{x}^{\mathrm{2}} \right)}{\mathrm{x}^{\mathrm{2}} +\mathrm{9}}\mathrm{dx} \\ $$

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