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数学题:这个式子是不是某个数的平方

  • 时间:2020-05-11 16:38:51
  • 分类:数学世界
  • 阅读:136 次

数学题:

1+1×2+1×2×3+1×2×3×4+1×2×3×4×5+1×2×3×4×5×6,

这个算式的得数能否是某个数的平方?

这题怎么做?

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