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blogTitle: '有两个限制条件的条件极值',
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本博文推导三元函数在两个约束条件下取极值的必要条件。
我们使用的教材(同济大学《高等数学》第六版) )给出了具有两个约束条件的条件极值的拉格朗日乘数法,但没有给出导出。 现将推导补充如下,供大家参考。
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