Question

8. Let A= (1,2,3) then n(P(A))=​

Answer 1

Answer:

Let A= (1,2,3) then n(P(A))=8

Step-by-step explanation:

Given set A= {1,2,3}

number of elements in A =n(A)= 3

We know that if the number of elements in the given set are ' n' then the number of sub sets are 2^n

Now subsets of the given set are 2^3=8

They are {},{1},{2},{3},{1,2},{1,3},{2,3},{1,2,3} orA

P(A) = {{},{1},{2},{3},{1,2},{1,3},{2,3},{1,2,3} }

nP((A))= 8