版选修4_5.pptx

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1、4.1 数学归纳法原理,本节目标,1.了解数学归纳法的原理及其使用范围 2会利用数学归纳法证明一些简单问题.,预习反馈,预习反馈,预习反馈,预习反馈,预习反馈,nn0,nk(kN,且kn0),nk1,提示 不一定,提示 不可以这两个步骤缺一不可,只完成步骤而缺少步骤,就作出判断可能得出不正确的结论因为单靠步骤,无法递推下去,即n取n0以后的数时命题是否正确,我们无法判定同样,只有步骤而缺少步骤时,也可能得出不正确的结论,缺少步骤这个基础,假设就失去了成立的前提,步骤也就没有意义了.,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,作业布置,在线完成4.1 数学归

2、纳法原理课后作业.,再见,4.1 数学归纳法原理,必修4-5,本节目标,1.了解数学归纳法的原理及其使用范围 2会利用数学归纳法证明一些简单问题.,预习反馈,预习反馈,预习反馈,预习反馈,预习反馈,nn0,nk(kN,且kn0),nk1,提示 不一定,提示 不可以这两个步骤缺一不可,只完成步骤而缺少步骤,就作出判断可能得出不正确的结论因为单靠步骤,无法递推下去,即n取n0以后的数时命题是否正确,我们无法判定同样,只有步骤而缺少步骤时,也可能得出不正确的结论,缺少步骤这个基础,假设就失去了成立的前提,步骤也就没有意义了.,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,随堂检测,

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