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1-find-dx-x-1-3-x-2-1-2-2-calculate-0-dx-x-1-3-x-2-1-2-




Question Number 81851 by abdomathmax last updated on 16/Feb/20
1)find ∫    (dx/((x+1)^3 (x^2 +1)^2 ))  2) calculate ∫_0 ^∞    (dx/((x+1)^3 (x^2 +1)^2 ))
$$\left.\mathrm{1}\right){find}\:\int\:\:\:\:\frac{{dx}}{\left({x}+\mathrm{1}\right)^{\mathrm{3}} \left({x}^{\mathrm{2}} +\mathrm{1}\right)^{\mathrm{2}} } \\ $$$$\left.\mathrm{2}\right)\:{calculate}\:\int_{\mathrm{0}} ^{\infty} \:\:\:\frac{{dx}}{\left({x}+\mathrm{1}\right)^{\mathrm{3}} \left({x}^{\mathrm{2}} +\mathrm{1}\right)^{\mathrm{2}} } \\ $$

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