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Gerda
Gerda

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Asked: Tháng Mười 26, 20202020-10-26T10:36:24+00:00 2020-10-26T10:36:24+00:00In: Môn Toán

Cho 6 số hữu tỉ $a

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Cho 6 số hữu tỉ $a

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    1. Euphemia

      Euphemia

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      Euphemia
      2020-10-26T10:37:57+00:00Added an answer on Tháng Mười 26, 2020 at 10:37 sáng

      Đáp án:

       

      Giải thích các bước giải:

       Vì $a<b⇒2a<a+b;c<d⇒2c<c+d;m<n⇒2m<m+n$

      Suy ra $2(a+c+m)<(a+b+c+d+m+n)$ do đó:

      $⇒\dfrac{a+c+m}{a+b+c+d+m+n}<\dfrac{1}{2}$

      Vậy đpcm

      Xin hay nhất 

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    2. Hưng Khoa

      Hưng Khoa

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      dangkhoa
      2020-10-26T10:38:15+00:00Added an answer on Tháng Mười 26, 2020 at 10:38 sáng

      Đây nha bạn ơi!

      #HỌC TỐT NHA!

      #Nocopy

      cho-6-so-huu-ti-a-b-c-d-m-n-cm-dfrac-a-c-m-a-b-c-d-m-n-dfrac-1-2

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