JEE Main 2021 Mathematics question

MathematicsPermutations and CombinationsJEE Main 2021

Let A = {0, 1, 2, 3, 4, 5, 6, 7}. Then the number of bijective functions f : A A such that f(1) + f(2) = 3 – f(3) is equal to

Answer: 720

Solution

Question ID VK-019783