Prove: If the entries in each row of an n n matrix A add up to zero, then the
Chapter 2, Problem 33(choose chapter or problem)
Prove: If the entries in each row of an n n matrix A add up to zero, then the determinant of A is zero. [Hint: Consider the product Ax, where x is the n 1 matrix, each of whose entries is one.]
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