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CBSE Class 11th: Sets – Subsets

In this video we will learn about the Subsets, Universal set and Power set.

Mar 17, 2015 14:46 IST
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In this video we will learn about the Subsets, Universal set and Power set.

  • The number subsets of a given set can be calculated with the help of the formula: 2n, where n stands for the number of elements that the given site is having.
  • The collection of all subsets of a set A is called the power set of A. It is denoted by P (A).
  • In P (A), every element is itself a set.
  • The power set for the above example would be: P(A) = {{ }, {2, 3}, {2}, {3}}
  • Universal set is said to be the parental set of others and all other sets are contained in it. It is denoted by U.
  • In other words, we may say that all other set is the subset of the universal set.

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