跪拜计算方法:0.1+0.12+0.123+0.1234+.+0.123456789=?
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/07/11 16:32:58
跪拜计算方法:0.1+0.12+0.123+0.1234+.+0.123456789=?
![跪拜计算方法:0.1+0.12+0.123+0.1234+.+0.123456789=?](/uploads/image/z/6718323-3-3.jpg?t=%E8%B7%AA%E6%8B%9C%E8%AE%A1%E7%AE%97%E6%96%B9%E6%B3%95%EF%BC%9A0.1%2B0.12%2B0.123%2B0.1234%2B.%2B0.123456789%3D%3F)
0.1+0.12+0.123+0.1234+.+0.123456789
=0.1*9+0.02*8+0.003*7+0.0004*6+0.00005*5+0.000006*4+0.0000007*3
+0.00000008*2+0.000000009*1
=0.9+0.16+0.021+0.0024+0.00025+0.000024+0.0000021+0.00000016+0.000000009
=1.083676269
=0.1*9+0.02*8+0.003*7+0.0004*6+0.00005*5+0.000006*4+0.0000007*3
+0.00000008*2+0.000000009*1
=0.9+0.16+0.021+0.0024+0.00025+0.000024+0.0000021+0.00000016+0.000000009
=1.083676269