設A為n階非零實矩陣(n>2),且每個元素等於它在detA中的代數餘子式,求detA

設A為n階非零實矩陣(n>2),且每個元素等於它在detA中的代數餘子式,求detA


detA=0,或detA=1.
由每個元素等於它在detA中的代數餘子式,則A等於它的伴隨矩陣A*,即A*=A,由AA*=detA*E,其中E是組織陣.
故det(AA*)=detA*detE,det(AA)=detA*detE,detAdetA=detA,
detA(detA-1)=0,故
detA=0,或detA=1.



麻煩幫我翻譯一下下麵這段話的意思
Teacher:Boys andgirls,give me an example of‘fever’.
Student A:I have Daiyue fever!
Student B:daiyue is a fever!
Teacher:Very good,you are ALL my BABY fever
DAIYUE我知道是什麼,她是我的偶像,叫代悅


老師:孩子們,給我一個'fever的例子.
學生A:我有代悅熱!
學生乙:代悅是(我們)喜歡的人!
老師:很好,你們都是老師的親親寶貝.
fever這裡應該是引申,指非常喜歡的人或物.
fever ['fi:və;]
n.
發熱,發燒,熱
熱病:
例句:yellow fever
黃熱病
狂熱,激昂,高度興奮



英語翻譯
A culture for more embracing business leadership is growing among young entrepreneurs.'Awareness' and especially 'green' has become trendy with young hipsters replacing baby boomers as the primary target for sustainable companies witnessed by the number of glossy magazines with 'green' cover issues the last 6months.Transparencyis increasinglythe formula of winners in a market based on affect and sympathy.


LianXin Wooden-Door is a comprehensive wood enterprise which integrates research design,production,sales and after-service.Itis located in Foshan