document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1034869>Question 1034869</A>: <I><SPAN STYLE=\"word-break: break-all;\"> cos^2theta - cos theta = 0 \r<BR>\n" );
document.write( "\n" );
document.write( "I don't understand how to solve this and how to do the work. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #649525 by </B><A HREF=/tutors/aboutme.mpl?userid=harpazo><B>harpazo(655)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=harpazo><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=harpazo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=649525\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos^2 &#952; - cos &#952; = 0\r<BR>\n" );
document.write( "\n" );
document.write( "Factor out cos &#952;.\r<BR>\n" );
document.write( "\n" );
document.write( "cos &#952;(cos &#952; - 1) = 0\r<BR>\n" );
document.write( "\n" );
document.write( "Set each factor to 0 and solve for &#952;.\r<BR>\n" );
document.write( "\n" );
document.write( "cos &#952; = 0\r<BR>\n" );
document.write( "\n" );
document.write( "&#952; = pi/2, 3pi/2\r<BR>\n" );
document.write( "\n" );
document.write( "cos &#952; - 1 = 0\r<BR>\n" );
document.write( "\n" );
document.write( "cos &#952; = 1\r<BR>\n" );
document.write( "\n" );
document.write( "&#952; = 2pi </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );