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生活中常遇到一些似是而非或者需要作出决策的问题,有些问题只要我们使用均值不等式,就可以判断出它们的是非并作出正确的决策.下面是几个典型的例子:
In life, we often encounter some plausible problems that need decision-making, some of which we can judge if they are non-positive and make the right decision as long as we use mean inequality. Here are some typical examples: