AbstractIn this paper,we take the final question of mathematics in the middle schoolentrance examination of Chengdu in the past six years (usually the last question in thetest pape...

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AbstractThe question of the degree of development of the consumer market in rural areasof our country is a matter of economic concern,which is worthy of discussion and study for a ...

AbstractThis paper takes the test questions related to angle transformation formula in the newcurriculum standard national examination paper (mathematics for science)from 2009 to20...

目录言.11.一元函数的极值.21.1极值定义.21.2必要条件…21.3充分条件….22.二元函数的极值.。.42.1无条件极值….42.2条件极值.62.2.1利用代入消元求取极值.72.2.2利用拉格朗日乘数法求取极值..8...

目录引言...。11无穷乘积收敛的定义与性质..41.1无穷乘积的基本概念..1.2无穷乘积的性质.…2无穷乘积的审敛法.……122.1无穷乘积收敛性的一般判别法…122.2无穷乘积与无穷级数的关系.143常用函...

same time,with the support of Internet technology,the education field and the Internet are deeplyintegrated to accelerate the innovation and Reform in the field of education in Chi...

AbstractAs an important part of reverse thinking,counterexample plays an indispensablerole in mathematics.When we want to prove some definitions and theorems,teachersshould use cou...

AbstractThe difference teaching is undoubtedly the most effective way to improve thelevel of education and teaching,to promote the development of students'personalityand to stimula...

AbstractThe primary function is very important,in junior middle school mathematics.It isthe opening chapter of the whole function field,so the mastery of the primaryfunction direct...