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Let us take the set A = {1, 2}

Let us find all the subsets of A

 

We know from property of subsets that

  • Empty set is the subset of all sets
  • Every set is a subset of itself

 

So, subsets of A will be

∅,

{1}, {2},

{1, 2}

 

Power set is the set of all subsets.

So, we write power set of A as

P(A) = {∅, {1}, {2}, {1, 2}}

  1. Chapter 1 Class 11 Sets
  2. Concept wise

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.