高中数学第二章数列2.3等差数列的前n项和第一课时等差数列的前n项和省公开课一等奖新名师优质课获奖P.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 数列,2.3,等差数列前,n,项和,第1课,时 等差数列前,n,项和,1/34,2/34,a,1,a,2,a,n,a,1,a,2,a,n,3/34,4/34,5/34,6/34,7/34,8/34,9/34,10/34,11/34,12/34,13/34,14/34,15/34,16/34,17/34,18/34,19/34,20/34,21/34,22/34,23/34,24/34,25/34,26/34,27/34,28/34,29/34,30/34,31/34,32/34,33/34,谢谢观看,34/34,