若a>0,b>0, 且1/a+1/b=根号ab。 [img src="https://img.haodaxue.net/uploadimg/image/20200606/20200606182251_59998.png" alt="" />
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正确答案： [img src="https://img.haodaxue.net/uploadimg/image/20200606/20200606182353_69942.png" alt="" /> 答案分析：img src="https://img.haodaxue.net/uploadimg/image/20200606/20200606182408_33437.png" alt="" />
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