Explain why x 3x 4x is undefined for x 4 but defined for x 3
Chapter 7, Problem 7.1.108(choose chapter or problem)
Explain why x 3x 4x is undefined for x 4 but defined for x 3.
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