document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=195626>Question 195626</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hey there, Could someone please help me with the following homework question? It would be a great help.\r<BR>\n" );
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document.write( "Solve the following equation for 0 lesser than and equal to x lesser than and equal to 2 pi.\r<BR>\n" );
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document.write( "sinx = cos2x (5 marks) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146705 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=146705\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sinx = cos2x<BR>\n" );
document.write( "sin(x) = 1-2sin^2(x)<BR>\n" );
document.write( "2sin^2 + sin - 1 = 0<BR>\n" );
document.write( "(2sin - 1)(sin + 1) = 0<BR>\n" );
document.write( "sin = 1/2, sin = -1<BR>\n" );
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document.write( "x = pi/6, 5pi/6 (from 1/2)<BR>\n" );
document.write( "x = 3pi/2 (sin = -1)<BR>\n" );
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