document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187223>Question 187223</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Que:If A is an invertible matrix of order 2,then det(A^(-1)) is equal to ?\r<BR>\n" );
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document.write( "My solution:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5E%28-1%29=%281%2F%7CA%7C%29%2A%28adj%28A%29%29 ALIGN=MIDDLE  ALT=\"A%5E%28-1%29=%281%2F%7CA%7C%29%2A%28adj%28A%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So,  |A^(-1)|=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%7C%281%2F%7CA%7C%29%2A%28adj%28A%29%7C ALIGN=MIDDLE  ALT=\"%7C%281%2F%7CA%7C%29%2A%28adj%28A%29%7C\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "             =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%7C%281%2F%7CA%7C%29%7C%2A%7C%28adj%28A%29%29%7C ALIGN=MIDDLE  ALT=\"%7C%281%2F%7CA%7C%29%7C%2A%7C%28adj%28A%29%29%7C\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "             =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F%7C%7CA%7C%7C%29%2A%7CA%7C%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"%281%2F%7C%7CA%7C%7C%29%2A%7CA%7C%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "             =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%7CA%7C%5E%28n-1%29%2F%28%7CA%7C%29 ALIGN=MIDDLE  ALT=\"%7CA%7C%5E%28n-1%29%2F%28%7CA%7C%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Given order =2<BR>\n" );
document.write( "=>|A^(-1)|=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%7CA%7C%2F%7CA%7C ALIGN=MIDDLE  ALT=\"%7CA%7C%2F%7CA%7C\"   DISABLED_style= \"max-width:90%; height:auto;\" >=1\r<BR>\n" );
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document.write( "Answer given at the back of the textbook is 1/|A|\r<BR>\n" );
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document.write( "How to arrive at such a result?\r<BR>\n" );
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document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140341 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=140341\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your post was completely gargled.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );