高中数学第二章圆锥曲线与方程2.2椭圆2.2.2第一课时椭圆的简单几何性质省公开课一等奖新名师优质课.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,第二章圆锥曲线与方程,2.2椭圆,2.2.2椭圆简单几何性质,第1课时椭圆简单几何性质,1/48,2/48,3/48,a,x,a,且,b,y,b,b,x,b,且,a,y,a,A,1,(,a,0),，,A,2,(,a,0),B,1(0,，,b,),，,B,2,(0,，,b,),A,1,(0,，,a,),，,A,2,(0,，,a,),B,1,(,b,0),，,B,2,(,b,0),F,1,(,c,0),，,F,2,(,c,0),F,1,(0,，,c,),，,F,2,(0,，,c,),坐标轴,原点,2,b,2,a,2,c,4/48,离心率,(0,1),越扁,0,5/48,6/48,7/48,8/48,9/48,依据椭圆方程研究其几何性质,10/48,11/48,12/48,13/48,14/48,15/48,利用几何性质求椭圆标准方程,16/48,17/48,18/48,19/48,20/48,21/48,22/48,23/48,24/48,25/48,26/48,求椭圆离心率,27/48,28/48,29/48,30/48,31/48,32/48,33/48,34/48,35/48,36/48,37/48,38/48,39/48,40/48,41/48,42/48,43/48,44/48,45/48,46/48,47/48,谢谢观看,48/48,