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thainguyenok0351
2 năm trước
*Cho tam giác MNP. Từ một điểm Q trên cạnh NP, kẻ các đường song song với cạnh MN, MP lần lượt tại E, F. Chứng minh a) tam giác ENQ đồng dạng tam giác MNP; tam giác FQP đồng dạng với tam giác MNP b) ME/MN+MF/MP=1 Giai hộ mình với, gấp lém
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