document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=40524>Question 40524</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve sin2y = cos4y for y, where 0 degrees < or equal to y < 360 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #25935 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=25935\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sin2y = cos4y<BR>\n" );
document.write( "Let z = 2y<BR>\n" );
document.write( "sin z = cos 2z<BR>\n" );
document.write( "This is true for z = 30, 150 degrees<BR>\n" );
document.write( "z = 2y<BR>\n" );
document.write( "30 = 2y<BR>\n" );
document.write( "y = 15<BR>\n" );
document.write( "and<BR>\n" );
document.write( "150 = 2y<BR>\n" );
document.write( "y = 75<BR>\n" );
document.write( "y = 15, 75 degrees answer </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );