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LaguerreL(9-1,1,2.3),Nintegrate[(e^(i t - e^(i t) 2.3) (1 + e^(-i t))^9)/(2 π),{t,0,2π}]
LaguerreL(9-1,1,2.3),Nintegrate[(e^(i t - e^(i t) 2.3) (1 + e^(-i t))^9)/(2 π),{t,0,2π}]
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