Question 32
Prove the inequality for positive $a$, $b$, $c$, $d$
$$
\frac{(a+b)^2}{cd} + \frac{(c+d)^2}{ab} \ge 8.
$$
$$
\frac{(a+b)^2}{cd} + \frac{(c+d)^2}{ab} \ge 8.
$$
MathNet 2026 — Part 08 Question 32
Math Olympiad Vault · MathNet 2026 — Part 08