A-A+

[6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-…

2022-03-06 12:05:01 问答库 阅读

问题详情

[6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-……-[6/(97×103)]= ()
A.433/567
B.532/653
C.522/721
D.436/673

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