高一数学对数函数与幕函数.ppt
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第一章 基本初等函数(Ⅰ)
单元复习
第二课时 对数函数和幂函数
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知识框架
对数的运算
对数与对数运算
对数的概念
概念
对数函数
图象
性质
换底公式
幂函数
概念
图象
指数函数
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综合应用
3
(0,2)
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例4 已知集合A={x|log2(-x)x+1},函数f(x)=ln(2x+1)的定义域为集合B,求A∩B.
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a1时为增函数;0a1为减函数.
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作业:
P82 复习参考题A组:3,5,8,10.
P83 复习参考题B组:2.
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