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Question Number 66680 by mathmax by abdo last updated on 18/Aug/19

calculate  Σ_(n=1) ^∞     (2^n /(3^n (2n^3  +n^2 −5n +2)))

$${calculate}\:\:\sum_{{n}=\mathrm{1}} ^{\infty} \:\:\:\:\frac{\mathrm{2}^{{n}} }{\mathrm{3}^{{n}} \left(\mathrm{2}{n}^{\mathrm{3}} \:+{n}^{\mathrm{2}} −\mathrm{5}{n}\:+\mathrm{2}\right)} \\ $$

Commented by Mohamed Amine Bouguezzoul last updated on 18/Aug/19

it cannot be with n=1

$${it}\:{cannot}\:{be}\:{with}\:{n}=\mathrm{1} \\ $$

Commented by mathmax by abdo last updated on 19/Aug/19

sorry the Q is calculate Σ_(n=2) ^∞  (2^n /(3^n (2n^3  +n^2 −5n +2)))

$${sorry}\:{the}\:{Q}\:{is}\:{calculate}\:\sum_{{n}=\mathrm{2}} ^{\infty} \:\frac{\mathrm{2}^{{n}} }{\mathrm{3}^{{n}} \left(\mathrm{2}{n}^{\mathrm{3}} \:+{n}^{\mathrm{2}} −\mathrm{5}{n}\:+\mathrm{2}\right)} \\ $$

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