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Mathematics, 17.09.2021 20:30 ecob35

Cho hình chóp S ABC . có M N, lần lượt là các điểm thuộc cạnh SA , SC sao cho MN không song song AC. Gọi O là điểm nằm trong tam giác ABC. Xác định giao tuyến của (OMN) và (SBC).

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Cho hình chóp S ABC . có M N, lần lượt là các điểm thuộc cạnh SA , SC sao cho MN không song song AC....
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