- #1
TTob
- 21
- 0
I don't understand this :
let A is n x n matrix whose entries are precisely the numbers 1, 2, . . . , n^2.
Put odd numbers into the diagonal of A, only even numbers above the diagonal and arrange the entries under the diagonal arbitrarily. Then det(A) is odd.
What is the explanation ?
let A is n x n matrix whose entries are precisely the numbers 1, 2, . . . , n^2.
Put odd numbers into the diagonal of A, only even numbers above the diagonal and arrange the entries under the diagonal arbitrarily. Then det(A) is odd.
What is the explanation ?