化简:|1/3-1/2|+|1/4-1/3|+|1/4-1/5|+...+|1/10-1/9|
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 16:51:32
![化简:|1/3-1/2|+|1/4-1/3|+|1/4-1/5|+...+|1/10-1/9|](/uploads/image/z/2480387-59-7.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%7C1%2F3-1%2F2%7C%2B%7C1%2F4-1%2F3%7C%2B%7C1%2F4-1%2F5%7C%2B...%2B%7C1%2F10-1%2F9%7C)
化简:|1/3-1/2|+|1/4-1/3|+|1/4-1/5|+...+|1/10-1/9|
化简:|1/3-1/2|+|1/4-1/3|+|1/4-1/5|+...+|1/10-1/9|
化简:|1/3-1/2|+|1/4-1/3|+|1/4-1/5|+...+|1/10-1/9|
绝对值里面的都是负数,就交换一下位置
=1/2-1/3+1/3-1/4+1/4-1/5.+1/9-1/10
=1/2-1/10
=2/5