JEE Main 2013 Mathematics question
Let A and B be two sets containing 2 elements and 4 elements respectively. The number of subsets of A × B having 3 or more elements is -
Answer: (1)
Solution
n(A×B)=8. Sum of through = .
Let A and B be two sets containing 2 elements and 4 elements respectively. The number of subsets of A × B having 3 or more elements is -
n(A×B)=8. Sum of through = .