1/2-(1/2-1/4)-(1/4-1/8)-……-(1/512-1/1024)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 00:59:52
1/2-(1/2-1/4)-(1/4-1/8)-……-(1/512-1/1024)1/2-(1/2-1/4)-(1/4-1/8)-……-(1/512-1/1024)1/2-(1/2-1/4)-(1/4

1/2-(1/2-1/4)-(1/4-1/8)-……-(1/512-1/1024)
1/2-(1/2-1/4)-(1/4-1/8)-……-(1/512-1/1024)

1/2-(1/2-1/4)-(1/4-1/8)-……-(1/512-1/1024)
=1/2-1/2+1/4-1/4+1/8……-1/512+1/1024
=1/1024
裂项相消,