Unformatted text preview: A in the last equation gives det(adj A ) = (det A ) 2 . (ii) . Also from equation (1) Âµ 1 det A A Â¶ adj A = I 3 , so adj A is nonâ€“singular and (adj A )1 = 1 det A A. Â±inally A1 adj( A1 ) = (det A1 ) I 3 and multiplying both sides of the last equation by A gives adj( A1 ) = A (det A1 ) I 3 = 1 det A A. 48...
View
Full Document
 Fall '10
 Dreibelbis
 SEPTA Regional Rail, Jaguar Racing, Det

Click to edit the document details