Question
Mathematics Question on permutations and combinations
Is 3! + 4! = 7! ?
Answer
3! = 1 x 2 x 3 = 6
4! = 1 x 2 x 3 x 4 = 24
∴ 3! + 4! = 6 + 24 = 30
7! = 1 x 2 x 3 x 4 x 5 x 6 x 7 = 5040
∴ 3! + 4! ≠ 7!
Is 3! + 4! = 7! ?
3! = 1 x 2 x 3 = 6
4! = 1 x 2 x 3 x 4 = 24
∴ 3! + 4! = 6 + 24 = 30
7! = 1 x 2 x 3 x 4 x 5 x 6 x 7 = 5040
∴ 3! + 4! ≠ 7!