document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=874516>Question 874516</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the solution of the equation 2cos^2X=1 on the interval [0, 360 degrees] </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #527641 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=527641\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the solution of the equation 2cos^2X=1 on the interval [0, 360 degrees]<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2cos%5E2%28x%29=1 ALIGN=MIDDLE  ALT=\"2cos%5E2%28x%29=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2%28x%29=1%2F2 ALIGN=MIDDLE  ALT=\"cos%5E2%28x%29=1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cos(x)=±&#8730;(1/2)=±&#8730;2/2<BR>\n" );
document.write( "x=45&#730;, 135&#730;, 225&#730;, 315&#730; </SPAN>\n" );
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