211008—集合的概念—212021082

Added by 212021082 4 年 ago

25 Views0 Comments0 Likes

211009-等差数列前n项和-212021084

Added by 212021084 4 年 ago

35 Views0 Comments0 Likes

211009-函数的奇偶性-212021089

Added by 212021089 4 年 ago

42 Views0 Comments0 Likes

互评量表

20211010-线段垂直平分线的性质-212021116

Added by 212021116 4 年 ago

40 Views0 Comments0 Likes

http://m.youku.com/v_show/id_XNTgxMjE1NTczNg==.html  

210917-基本不等式-212040016

Added by 212040016 4 年 ago

25 Views0 Comments0 Likes

211010-任意角的三角函数-212021094

Added by 212021094 4 年 ago

43 Views0 Comments0 Likes