document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205107>Question 1205107</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let D and E be the following matrices:\r<BR>\n" );
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document.write( "I don't know how to format matrices on here, so I will write the top row (horizontal) and the bottom row. These are all 2 x 2 matrices. \r<BR>\n" );
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document.write( "D dilates vectors by a factor of 3. E is the matrix [1  2][4  5]. \r<BR>\n" );
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document.write( "Calculate the matrix D^-1 E[-2  1][1  4]\r<BR>\n" );
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document.write( "Sorry if the matrices are unclear. In latex, you are calculating $\[\mathbf{D}^{-1}\mathbf{E} \begin{pmatrix} -2 & 1\\ 1 & 4 \end{pmatrix}.\]$ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #841747 by </B><A HREF=/tutors/aboutme.mpl?userid=kately><B>kately(2)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=kately><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=841747\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Thank you to ikleyn! Using D^-1, I got that the final answer was [0  9][-3  24].  </SPAN>\n" );
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