求|1/4-1/2|+|1/6-1/4|+|1/8-1/6|+.+|1/100-1/98|的值

分类: 作业答案 • 2022-01-21 14:27:34

问题描述：

答

|1/4-1/2|+|1/6-1/4|+|1/8-1/6|+.+|1/100-1/98| =(1/2-1/4)+(1/4-1/6)+.(1/98-1/100) =1/2-1/100 =50/100-1/100 =49/100=0.49