0.1+0.2+0.3+...+0.8+0.9+0.12+0.14+0.16+...+0.88 =等于多少,

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/27 22:32:12
0.1+0.2+0.3+...+0.8+0.9+0.12+0.14+0.16+...+0.88 =等于多少,

0.1+0.2+0.3+...+0.8+0.9+0.12+0.14+0.16+...+0.88 =等于多少,
0.1+0.2+0.3+...+0.8+0.9+0.12+0.14+0.16+...+0.88 =
等于多少,

0.1+0.2+0.3+...+0.8+0.9+0.12+0.14+0.16+...+0.88 =等于多少,
0.1+0.2+0.3+...+0.8+0.9+0.12+0.14+0.16+...+0.88
= ﹙ 0.1+0.9﹚*9/2+﹙0.12+0.88﹚*39/2
=4.5+19.5
=24

0.1+0.2+0.3+...+0.8+0.9+0.12+0.14+0.16+...+0.88
= ﹙ 0.1+0.9﹚*9/2+﹙0.12+0.88﹚*39/2
=4.5+19.5
=24