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Mathematics, 10.11.2021 17:50 huangjianhe135
Trên tập N các số tự nhiên xác định các quan hệ S và T như sau : tô Vabe NaSbe a , b không nguyên tố cùng nhau , a T be a , b có cùng chữ số hàng đơn vị . a ) Trong hai quan hệ trên , quan hệ nào là quan hệ tương đương ? b ) Tìm tập thương tương ứng với quan hệ tương đương đó .
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Trên tập N các số tự nhiên xác định các quan hệ S và T như sau : tô Vabe NaSbe a , b không nguyên tố...
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