[理工] [工數]-矩陣證明
看板Grad-ProbAsk作者cmkv7rdf (Why so serious?)時間14年前 (2009/09/24 19:22)推噓1(1推 0噓 4→)留言5則, 2人參與討論串1/8 (看更多)
1.let S ={(x1,x2,x3)′│x1=x2} . Show that S is a subspace of R^3.
2.prove the following rules for matrix multiplication:
(a) (AB)C=A(BC)
(b) A(B+C)=AB+AC
(c) (AB) = B A
3.let A=│ a11 a12 │ ,show that if d=a11a22-a21a12≠0,
│ a21 a22 │
Then A^-1= 1/d │ a22 -a12 │
│ -a21 a11 │
回答出來一題給100P
--
∫εδ≧≦∵∴√→∞^Σπ÷˙
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 123.192.110.88
※ 編輯: cmkv7rdf 來自: 123.192.110.88 (09/24 19:23)
※ 編輯: cmkv7rdf 來自: 123.192.110.88 (09/24 19:25)
推
09/24 19:33, , 1F
09/24 19:33, 1F
→
09/24 19:33, , 2F
09/24 19:33, 2F
→
09/24 19:34, , 3F
09/24 19:34, 3F
→
09/24 19:36, , 4F
09/24 19:36, 4F
→
09/24 19:38, , 5F
09/24 19:38, 5F
討論串 (同標題文章)