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

Toán Lớp 5: A=(1 + 1/2016 ) x (1 + 1/2017) x ( 1+ 1/2018) x (1 + 1/2019 ):2020

Toán Lớp 5: A=(1 + 1/2016 ) x (1 + 1/2017) x ( 1+ 1/2018) x (1 + 1/2019 ):2020

Comments ( 2 )

  1. A = ( 1 + 1/2016 ) xx ( 1 + 1/2017 ) xx ( 1 + 1/2018 ) xx ( 1 + 1/2019 ) : 2020
    A = 2017/2016 xx 2018/2017 xx 2019/2018 xx 2020/2010 : 2020
    A = 2020/2016 : 2020
    A = 2020/2016 xx 1/2020
    A = 1/2016
    #dtkc
     

  2. Lời giải và giải thích chi tiết:
    A=(1 + 1/2016 ) x (1 + 1/2017) x ( 1+ 1/2018) x (1 + 1/2019 ):2020
    A= (2017/2016 x 2018/2017x 2019/2018x 2020/2019 ) : 2020
    A= 505/404 : 2020
    A= 1/2016
     

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

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