Question

The number of elements in the power set P(s) of the get S$=\left\{\right(\varphi ),1(2,3\left)\right\}$ is _______________.

• A. $2$
• B. $4$
• C. $8$
• D. None of these

Answer 1

The correct option is C $8$

The power set of any set S is the set of all subsets of S, including the empty set and S itself, various denoted as p(S).

Let power set of S=x

Number of elements of power set of x

P(x)=2^n=2^3=8.