S Siesta New member Joined Mar 18, 2009 Messages 5 Mar 18, 2009 #1 Suppose that all the entries in A are integers and det A = 1. Explain why all the entries in A^-1 are also integers.
Suppose that all the entries in A are integers and det A = 1. Explain why all the entries in A^-1 are also integers.
pka Elite Member Joined Jan 29, 2005 Messages 11,978 Mar 19, 2009 #2 Re: linear algebra question Siesta said: Suppose that all the entries in A are integers and det A = 1. Explain why all the entries in A^-1 are also integers. Click to expand... How are the entries in \(\displaystyle A^{-1}\) found?
Re: linear algebra question Siesta said: Suppose that all the entries in A are integers and det A = 1. Explain why all the entries in A^-1 are also integers. Click to expand... How are the entries in \(\displaystyle A^{-1}\) found?
