│4 2│ │ 3 0 │ │2 1 │
│5 3│ [A] │-1 1 │ = │1 2 │
Find A, A is a order 2 square matrix
Matrix
2012-09-08 8:41 am
回答 (1)
2012-09-08 10:17 pm
✔ 最佳答案
inverse of ( 4 2 ) is ( 3/2 - 1 ) = X( 5 3 ) ( - 5/2 2 )
inverse of ( 3 0 ) is ( 1/3 0 ) = Y
( -1 1 ) ( 1/3 1 )
So A = X ( 2 1 ) Y
( 1 2 )
= ( 1/2 - 1/2 )
( - 1/2 3/2 )
收錄日期: 2021-04-25 22:43:06
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120908000051KK00018