document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=843912>Question 843912</A>: <I><SPAN STYLE=\"word-break: break-all;\"> suppose A is an invertible n x n matrix .Which of the following is true/are true<BR>\n" );
document.write( "a.(A minus 1)minus 1= A<BR>\n" );
document.write( "b. det(A minus 1)= (det A)minus 1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #508403 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=508403\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) The inverse of the inverse of A is A. True, by definition.<BR>\n" );
document.write( "b) The determinant of the inverse of A is the reciprocal of the determinant of A. True. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );