高二数学苏教版评优课椭圆的标准方程-ppt

《高二数学苏教版评优课椭圆的标准方程-ppt》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、椭圆的标准方程江苏省高淳高级中学濮阳康和Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.平面内到两个定点F1，F2的距离的和等于常数(大于F1F2)的点的轨迹——椭圆更多资源xiti123.taobao.co

2、m两个定点F1，F2——椭圆的焦点两焦点间的距离——椭圆的焦距Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.汽车贮油罐的横截面的外轮廓线的形状像椭圆．椭圆？Evaluationonly.Createdwit

3、hAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.椭圆？将一个圆进行均匀压缩变形后，所得的图形也像椭圆．Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyrigh

4、t2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.问题1：它们是不是数学概念上的椭圆？怎样来检验所得的曲线是不是椭圆？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.Createdw

5、ithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.中国第一颗人造地球卫星“东方红一号”Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2

6、011AsposePtyLtd.问题2：怎样才能精确地设计卫星运行的轨道？如何研究椭圆的性质？Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.问题3：如何建立椭圆的方程？Evaluationonly.Crea

7、tedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.已知一个运油车上的贮油罐横截面的外轮廓线是一个椭圆，它的焦距为2m，外轮廓线上的任一点P到两个焦点F1，F2的距离的和为3m．试求这个椭圆的方程．思考Evaluationonly.Createdwi

8、thAspose.Slidesfor.NET3.5C