document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=861117>Question 861117</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find a polar form of the equation x^2+y^2-8x=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #518856 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=518856\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find a polar form of the equation x^2+y^2-8x=0<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Conversion formulas:<BR>\n" );
document.write( "x = rcos(t)<BR>\n" );
document.write( "y = rsin(t)<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "x^2 + y^2 - 8x = 0<BR>\n" );
document.write( "(rcos(t))^2 + (rsin(t))^2 - 8rcos(t) = 0<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "r^2(cos^2(t) + sin^2(t)) = 8rcos(t)<BR>\n" );
document.write( "r^2 - 8rcos(t) = 0<BR>\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );