document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1101271>Question 1101271</A>: <I><SPAN STYLE=\"word-break: break-all;\"> AB=BA=I and AC=CA=I. Then what about B an C<BR>\n" );
document.write( "a. They are equal<BR>\n" );
document.write( "b. they are not equal<BR>\n" );
document.write( "c. Each is equal to A<BR>\n" );
document.write( "d. None </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #715818 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=715818\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> AB = BA = I implies that B is the inverse of A<BR>\n" );
document.write( "AC = CA = I implies that C is the inverse of A<BR>\n" );
document.write( ":<BR>\n" );
document.write( "therefore B = C since the inverse of a matrix is unique, answer is a<BR>\n" );
document.write( ":<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );