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

Toán Lớp 6: so sanh 2020^10 + 2020^9 va 2021^10

Toán Lớp 6: so sanh 2020^10 + 2020^9 va 2021^10

Comments ( 1 )

  1. Lời giải và giải thích chi tiết:
    2020^10 + 2020^9
    = 2020^9(2020 + 1)
    = 2020^9 . 2021
    2021^10
    = 2021^9 . 2021
    Do  2020^9 < 2021^9
    => 2020^9 . 2021 < 2021^9 . 2012
    => 2020^10 + 2020^9 < 2021^10

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