問題詳情

Which of the following statements about the determinant is true?

(A) For any square matrix A, det

= -det A.

(B) The determinant of the n x n identity matrix is

.

(C) 'The deterrninant of an upper triangular mnatrix is always equal to the product of its
diagonal entries.

(D) Performing a row addition operation on a square matrix does not change its determinant.

(E) Performing a scaling operation on a square matrix does not change its determinant.

參考答案

答案：C,D
難度：計算中-1
書單：沒有書單，新增