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数学
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lg(x-√x^2-a^2)求导
人气:174 ℃ 时间:2020-03-11 16:43:01
解答
(lgA)'=1/(A*ln10)
(x-√x^2-a^2)'=1- x/(√x^2-a^2)
所以由复合函数的求导法则可以知道
lg(x-√x^2-a^2)的导数=[1- x/(√x^2-a^2)] / [(x-√x^2-a^2)*ln10]
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