Preference

প্রশ্নঃ A = {2,e} হলে P(A) কোনটি?

  1. ক.
    { {2}, {e} }
  2. খ.
    { {2}, {e}, {2,e} }
  3. গ.
    {}
  4. ঘ.
    { {2}, {e}, {2,e}, {∅} }
উত্তরঃ
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