(1/2022-1)×(1/2021-1)×(1/2020-1)…×(1/1000-1)
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(1/2022-1)×(1/2021-1)×(1/2020-1)…×(1/1000-1)=(-2021/2022)×(-2020/2021)×(2019/2020)×…(-999/1000)=-999/2022
咨询记录 · 回答于2022-09-26
(1/2022-1)×(1/2021-1)×(1/2020-1)…×(1/1000-1)
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(1/2022-1)×(1/2021-1)×(1/2020-1)…×(1/1000-1)=(-2021/2022)×(-2020/2021)×(2019/2020)×…(-999/1000)=-999/2022