Question:
How many elements has $\bar{P}(A)$, if $A=\phi$ ?
Solution:
Given : $A=\phi$
This means $P(A)=\{\phi\}$.
Hence, $P(A)$ would have one element.
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.