Question:
When A = ϕ, then the number of elements in P(A) is ____________.
Solution:
Let A = ϕ
Then number of elements in P(A) = 1 = 20
i.e. $P(A)=\{\{\phi\}\}$
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.