Chủ đề:

§1. Bất đẳng thức

Câu hỏi:

Cho 3 số dương a, b, c thoã mãn a+b+c=1. Chứng minh rằng:

\(\sqrt{\dfrac{ab}{c + ab}} + \sqrt{\dfrac{bc}{a + bc}} + \sqrt{\dfrac{ca}{b + ac}} ≤ \dfrac{3}{2}\)

Chủ đề:

Luyện tập tổng hợp

Câu hỏi:

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