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页数:10页
时间:2017-11-14
《第十讲 圆锥曲线(二)双曲线》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第十讲圆锥曲线二(双曲线)一【考点提示】(一)定义:1.第一定义:__________________________________________________________________________________________________2.第二定义:__________________________________________________________________________________________________(二)方程:标准方程:___________
2、_______________________________________________________________________________________(三)性质:1.范围:________________________________________________2.离心率:__________________________________________________________________________________________________3.准线:___
3、______________________________________________4.焦半径:__________________________________________________________________________________________________5.通径:_________________________________________________6.焦准距:_______________________________________________7
4、.切线方程:________________________________________________8.弦长公式:________________________________________________9.特殊三角形:_____________________________________________________________________________________________________________________________________________
5、_(四)点与双曲线的位置关系:__________________________________________________________________________________________________(五)焦点三角形:1.顶角:_________________________________________________2.焦点三角形面积:_________________________________________(五)共轭双曲线:______________________
6、_____________________________________________________________________________________________________________________________(六)等轴双曲线_____________________________________________________________________________________________________________________________
7、______________________(七)双曲线的渐近线1.双曲线渐近线的求法_________________________________________________2.共渐近线双曲线设法_________________________________________________3.渐近线与离心率的关系_________________________________________________(八)常见做法和结论:1.双曲线焦点位置不确定,如何设方程:_______________
8、__________________________________2.与共焦点的双曲线:_________________________________________________3.双曲线的切线问题以及直线与双曲线只有一个交点的判断?________________________________________________________________________
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