JEE Main 2012 Mathematics question

MathematicsPermutations and CombinationsJEE Main 2012

Let X = {1, 2, 3, 4, 5}. The number of different ordered pairs (Y, Z) that can be formed such that , and is empty, is

Answer: (2)

Solution

Each element of X independently goes into Y only, Z only, or neither (not both): ordered pairs, option (2).

Question ID VK-103777