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doanthao08shh
2 năm trước
ko cần vẽ hình Cho góc xOy = 120 độ; điểm M thuộc tia phân giác của góc đó. Kẻ MN vuông Ox (N thuộc Ox); MP thuộc Oy; (P thuộc Oy). Tam giác MNP là tam giác j? Chứng minh
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