1. Chapter 1 Class 11 Sets (Term 1)
  2. Serial order wise
  3. Ex 1.3

Ex 1.3, 5 - Chapter 1 Class 11 Sets (Term 1)

Last updated at Jan. 27, 2020 by

Ex 1.3, 5 - How many elements has P(A), if A = null - Ex 1.3

  1. Chapter 1 Class 11 Sets (Term 1)
  2. Serial order wise

    3. Ex 1.3

    Ex 1.4 →

Transcript

Ex 1.3, 5 How many elements has P(A), if A = ϕ ? P(A) is the power set of set A Number of elements of P(A) = 2n where n is the number of elements of the set A Given A = ϕ, then number of elements of set A = 0. ∴ Number of elements of P(A) = 2n = 20 = 1 Hence, P(A) has one element.

Chapter 1 Class 11 Sets (Term 1)
Serial order wise

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.