document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=622016>Question 622016</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve for all\r<BR>\n" );
document.write( "\n" );
document.write( "2cos(x/2)+1 =0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #391448 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=391448\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve for all <BR>\n" );
document.write( "2cos(x/2)+1 =0<BR>\n" );
document.write( "2cos(x/2)=-1<BR>\n" );
document.write( "cos(x/2)=-1/2<BR>\n" );
document.write( "x/2=2&#960;/3<BR>\n" );
document.write( "x=&#960;/3+2&#960;n, n=integer<BR>\n" );
document.write( "and<BR>\n" );
document.write( "x/2=4&#960;/3<BR>\n" );
document.write( "x=2&#960;/3+2&#960;n, n=integer<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );