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minimal polynomial 1/(1/12 (-2 - 29/(307 + 39 sqrt(78))^(1/3) + (307 + 39 sqrt(78))^(1/3)))
minimal polynomial 1/(1/12 (-2 - 29/(307 + 39 sqrt(78))^(1/3) + (307 + 39 sqrt(78))^(1/3)))
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