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integral -(16 cos(4 ϕ) sin^2(ϕ))/((-17 + cos(8 ϕ))) dphi from 0 to 2 pi
integral -(16 cos(4 ϕ) sin^2(ϕ))/((-17 + cos(8 ϕ))) dphi from 0 to 2 pi
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