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Mathematics, 30.07.2021 02:50 Emptypockets451

Cho tứ diện ABCD có các cạnh BA, BC, BD đôi một vuông góc với nhau và có gọi M, N lần lượt là trung điểm của AB và AD .Tính thể tích V của khối chóp C. BDNM

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Cho tứ diện ABCD có các cạnh BA, BC, BD đôi một vuông góc với nhau và có gọi M, N lần lượt là trung...
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