1/1x3+1/3x5+1/5x7+...+1/97x99=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/30 22:50:48
![1/1x3+1/3x5+1/5x7+...+1/97x99=?](/uploads/image/z/6889543-7-3.jpg?t=1%2F1x3%2B1%2F3x5%2B1%2F5x7%2B...%2B1%2F97x99%3D%3F)
x)370670zzz@yMR>A5v6T0 PHPHiR RU5\ȶ/.H̳9 *5f
1/1x3+1/3x5+1/5x7+...+1/97x99=?
1/1x3+1/3x5+1/5x7+...+1/97x99=?
1/1x3+1/3x5+1/5x7+...+1/97x99=?
1/1x3+1/3x5+1/5x7+...+1/97x99
=1/2(1-1/3+1/3-1/5+1/5-1/7+...+1/97-1/99)
=1/2(1-1/99)
=49/99