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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: (2n+1) chia hết cho (2n-1). Số nào chia hết cho (2n-1)

Toán Lớp 6: (2n+1) chia hết cho (2n-1). Số nào chia hết cho (2n-1)

Comments ( 2 )

  1. (2n+1) chia hết cho (2n-1)
    => (2n+1 chia hết cho (2n-1)
     

  2. Tham khảo:
    ( 2n + 1 ) \vdots ( 2n – 1 )
    => 2n – 1 + 2 \vdots 2n – 1
    => 2n – 1 \vdots 2n – 1
    => 2 vdots 2n – 1
    #IE

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222-9+11+12:2*14+14 = ? ( )

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