Which three matrices E21, E31, E32 put A into triangular form U? A = 1 1 0 4 6 1 2 2 0
Chapter 1, Problem 1.4.24(choose chapter or problem)
Which three matrices E21, E31, E32 put A into triangular form U? A = 1 1 0 4 6 1 2 2 0 and E32E31E21A = U. Multiply those Es to get one matrix M that does elimination: MA = U.
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