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zrnkythanh
2 năm trước
tìm x, y, z x.y = -30 , y.z = -12 và z - x = -12 làm kiểu ti lệ thức nhá tìm diện tích hình tam giác vuông biết tỉ số giữa 2 cạnh góc vuông là 2 : 5 và chúng hơn kém nhau 12cm giúp với cần gấp
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