幂函数习题精选精讲1（Selected exercises of power function 1）.docVIP

下载本文档

0
0
约9.41千字
约 11页
2018-03-14 发布于湖北
举报
版权申诉

幂函数习题精选精讲1（Selected exercises of power function 1）.doc

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

幂函数习题精选精讲1（Selected exercises of power function 1）

幂函数习题精选精讲1（Selected exercises of power function 1） power function As the main function of high school mathematics, throughout the high school mathematics learning always, and the power function is a part of which, though it simple, but contains some important mathematical ideas. The analysis of several cases, in order to expand students thinking. First, the idea of classified discussion Example 1, the image of the known function and the two axis have no common point, and its image about the Y axis symmetry, the value of N, and draw the function of the image Solution: since there is no common point between the image and the Y axis, the image is symmetrical about the Y axis, even if it is even At that time, not even; At that time, even numbered; At that time, even numbered; At that time, not even; At that time, even numbered; So n is, 1 or 3. At this point, the power function is interpreted as or, and its image is shown in Figure 1 Two, the idea of combining numbers and shapes Example 2 the known point is on the image of the power function, points on the image of the power function When asked why x is worth: (1); (2); (3) Analysis: by the definition of power function, first find and parse the formula, and then use the image to judge Solution: set by you to, So, that is. Then by order, you have to, So, that is made. In the same coordinate system And the image, as shown in Figure 2, is illustrated by the image: (1) when or when,; (2) at that time,; (3) when and when Summary: the combination of numbers and shapes has important applications in the discussion of inequality, and pays attention to the implicit conditions in this topic Three, the mathematical idea of transformation Example 3 the domain of the function is all real numbers, and the range of the real number m is () A. B. C. D. Resolution: if the domain of the function is all real numbers, it can be converted to all real numbers, that is, and B Three kinds of discussion questions in power function The so-called