Let n N. Prove that if
Chapter 3, Problem 3.2(choose chapter or problem)
Let n N. Prove that if |n 1|+|n + 1| 1, then |n2 1| 4.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer