document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=628662>Question 628662</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the equation exactly over the interval [0,2pi)\r<BR>\n" );
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document.write( "cos 2x= sqrt2 -cos 2x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #395779 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=395779\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve the equation exactly over the interval [0,2pi) <BR>\n" );
document.write( "cos 2x= sqrt2 -cos 2x<BR>\n" );
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document.write( "2cos(2x) = sqrt(2)<BR>\n" );
document.write( "cos(2x) = sqrt(2)/2<BR>\n" );
document.write( "2x = pi/4 or -pi/4<BR>\n" );
document.write( "x = pi/8 or -pi/8<BR>\n" );
document.write( "==========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============= </SPAN>\n" );
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