Question

write the power set of A={1,2,3}​

Answer 1

Answer:

{ 1 }, { 2}, { 3 }, { 1,2}, { 1,3}, {2,3}, {1,2,3}, { }

Answer 2

Answer:

no. of elements in the power set = $2^n$ where n is number of elements in set.

hence no of elements in power set = 2³ = 8

Power set P(A) = { 1 , 2 , 3 , ( 1 , 2 ) , ( 2 , 3 ) , ( 1 , 3 ) , ( 1 , 2 , 3 ) , Ø }

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