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Câu 3:

Cho hai số thực dương x, y thỏa mãn $x + y + xy \ge 7$

Câu 3: Cho hai số thực dương x, y thỏa mãn x+y+xy≥7x + y + xy \ge 7x+y+xy≥7. Giá trị nhỏ nhất của S = x + 2y là:

Thông tin câu hỏi

Câu 3:

Cho hai số thực dương x, y thỏa mãn $x + y + xy \ge 7$ . Giá trị nhỏ nhất của S = x + 2y là: