
4/5+36/37+144/145+400/401+900/901+1764/1765=?
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36/37+144/145+400/401+900/901+1764/1765=5.7619062055114()%c789÷456×123-0.
咨询记录 · 回答于2022-09-28
4/5+36/37+144/145+400/401+900/901+1764/1765=?
36/37+144/145+400/401+900/901+1764/1765=5.7619062055114()%c789÷456×123-0.
3/4+5/36+7/144+9/400+11/900+13/1764+15/3136 =1-1/4+1/4-1/9+1/9-1/16+1/16-1/25+1/25-1/36+1/36-49+1/49-1/64 =1-1/64 =63/64