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大小:1.78 MB
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时间:2019-06-21
《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
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