Machine-translated by Google. Questions are authored in English.
Top

Discussion

What is the determinant of a triangular matrix?

  • A.the product of its non-zero entries
  • B.the product of its diagonal entries
  • C.the sum of its diagonal entries
  • D.zero

Answer: B

Expanding along the first column repeatedly leaves only the diagonal terms, since every other cofactor carries a zero factor. It is why reduction to triangular form is the standard method of evaluating a large determinant.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.