一道关于a²+b²≥2ab的竞赛题_哔哩哔哩_bilibili

Name: %E4%B8%80%E9%81%93%E5%85%B3%E4%BA%8Ea%C2%B2+b%C2%B2%E2%89%A52ab%E7%9A%84%E7%AB%9E%E8%B5%9B%E9%A2%98
Uploaded: 2025-07-11T08:00:54.076Z
Description: %E6%9C%89%E9%97%AE%E9%A2%98%E4%B8%80%E8%B5%B7%E5%9C%A8%E8%AF%84%E8%AE%BA%E5%8C%BA%E8%AE%A8%E8%AE%BA%E5%91%80%EF%BC%81%E5%8A%A0%E6%B2%B9-%20%CD%80%CC%97(%E0%B9%91%E1%B5%94%E2%8C%94%E1%B5%94%E0%B9%91)