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1 本单元重、难点分析1)重点 :对数的定义 ;对数的性质与运算法则 ;在理解对数函数的定义的基础上 ,掌握对数函数的图象和性质 .2 )难点 :对数定义中涉及的名称较多 ,易混难记 ;对数的运算法则的推导和应用 ;对数函数的图象与性质及其运用 .2 典型例题选讲例 1 已知ｌｏｇ2
1 The unit’s heavy and difficult analysis 1) Emphasis: The definition of the logarithm; The nature of the logarithm and the algorithm; On the basis of understanding the definition of the logarithm function, grasp the image and nature of the logarithm function. 2) Difficulties: Right There are many names involved in the definition of number, easy to mix and difficult to remember; the derivation and application of the logarithm of the algorithm; the logarithmic function of the image and nature and its application. 2 typical examples of the election example 1 known log2