Question:
A relation on the set $A=\{x:|x|<3, x \in Z\}$, where $Z$ is the set of integers is defined by $R=\{(x, y): y=|x|, x \neq-1\}$. Then the number of elements in the power set of $R$ is:
Correct Option: 3
JEE Main Previous Year Online April 12, 2014
Solution: