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(1/2)^(-1/3)*(e^(-2*pi*i/3)-1/3*sum_(w=0)^5 (z*(1/2)^(5/3))^(w+1)*e^(2*pi*i(2w+1)/3)C(1/3 (5 w + 1),w)/((w+1))),z=.1
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