Question

the number of elements in power set A=(1,2,3)​

Answer 1

Answer:

Power set of a set is the set of all possible sets formed by elements of the given set. Number of elements in set = n(B) = 3 . Therefore, Number of elements in power set = 2^n(B) = 2^3 = 8 .

Answer 2

Answer:

$n(p(a))$

$= {2}^{n}$

$= {2}^{3}$

$= 8$