use mathmatical induction to prove:?

0 ⤊

5 divides n squared - n for any non-negative integer n.

2007-10-21 09:40:10 · 2 answers · asked by LULU 1 in Science & Mathematics ➔ Mathematics

It doesn't, let n = 2
=> n(n-1) = 2 and five does not divide 2

2007-10-21 09:59:37 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Must be something wrong here: 2^2 - 2 = 2, 3^2 - 3 = 6, 4^4 - 4 = 12. None are divisible by 5.

2007-10-21 17:11:19 · answer #2 · answered by Tony 7 · 0⤊ 0⤋