(1) Show that A is invertible.
(2) Find det(A)
(3) Find the inverse matrix of A.
更新1:
A=[a(i,j)], a(i,j)=cos[(i-1)(2j-1)π/(2n)], 1<= i, j <= n,
det. and inverse
2012-05-17 3:59 pm
Given a matrix A=[a(i,j)], a(i,j)=cos[i(2j-1)π/(2n)], 0<= i, j < n,
(1) Show that A is invertible.
(2) Find det(A)
(3) Find the inverse matrix of A.
(1) Show that A is invertible.
(2) Find det(A)
(3) Find the inverse matrix of A.
回答 (1)
2012-05-18 5:47 am
收錄日期: 2021-04-23 23:28:11
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https://hk.answers.yahoo.com/question/index?qid=20120517000051KK00097