1x3/1+3x5/1+5x7/1+...+99x101/1=(要求写过程)1-----1x3
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 02:35:57
![1x3/1+3x5/1+5x7/1+...+99x101/1=(要求写过程)1-----1x3](/uploads/image/z/11611406-38-6.jpg?t=1x3%2F1%2B3x5%2F1%2B5x7%2F1%2B...%2B99x101%2F1%3D%28%E8%A6%81%E6%B1%82%E5%86%99%E8%BF%87%E7%A8%8B%291-----1x3)
1x3/1+3x5/1+5x7/1+...+99x101/1=(要求写过程)1-----1x3
1x3/1+3x5/1+5x7/1+...+99x101/1
=(要求写过程)
1
-----
1x3
1x3/1+3x5/1+5x7/1+...+99x101/1=(要求写过程)1-----1x3
原始等于2*(1-1/3+1/3-1/5+...1/99-1/101)
=2*(1-1/101)
=2*100/101
=200/101
你不会用计算器吗????????=34744