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maihoathptdt
2 năm trước
Cho 3 số dương a, b, c thỏa mãn ac = 3. Giá trị nhỏ nhất của biểu thức: P = √(a ² - ab + b ²) + √(b2 - bc + c2) bằng? Giải thích giúp mình cách giải với. Thanks
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