document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1041000>Question 1041000</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve for the exact solutions in the interval [0,2&#960;)<BR>\n" );
document.write( "cos(2x)=cos(x)\r<BR>\n" );
document.write( "\n" );
document.write( "I got 0 but apparently there are more solutions <BR>\n" );
document.write( " <BR>\n" );
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 #655922 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=655922\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos(2x)=cos(x)<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "2cos^2(x) - 1 = cos(x)<BR>\n" );
document.write( "2cos^2(x) - cos(x) - 1 = 0<BR>\n" );
document.write( "(2cos + 1)*(cos - 1) = 0<BR>\n" );
document.write( "cos = 1<BR>\n" );
document.write( "x = 0<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "cos = -1/2<BR>\n" );
document.write( "x = 2pi/3<BR>\n" );
document.write( "x = 4pi/3<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );