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简证一道不等式４１１５０１湖南双峰二中胡如松此题一般是构造一个长方体来证明．下面我们给出它的一种简单的代救证法．简证一道不等式@胡如松$湖南双峰二中...
An introductory inequality 411501 Hunan Shuangfeng Erzhong Hu Rusong This question is generally constructed by constructing a rectangular parallelepiped to prove. Below we give it a simple way to save for proof. Concise inequality @ Hu Rusong $ Hunan Shuangfeng II...