Mathematics

Mathematics, 22.07.2021 14:00, nando4786

cho tứ giác ABCD. Gọi M, N,P, Q là trung điểm của các cạnh AB, CD, AD, BC. Chứng minh rằng vecto MP = vecto QN, vecto MQ = vecto PN

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cho tứ giác ABCD. Gọi M, N,P, Q là trung điểm của các cạnh AB, CD, AD, BC. Chứng minh rằng vecto MP...

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