document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=707070>Question 707070</A>: <I><SPAN STYLE=\"word-break: break-all;\"> simplify:<BR>\n" );
document.write( "sinx . cosx . cos 2x \r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #435511 by </B><A HREF=/tutors/aboutme.mpl?userid=mouk><B>mouk(232)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mouk><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=mouk><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=435511\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the identity:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sin%28A%2BB%29=sinAcosB%2BcosAsinB+ ALIGN=MIDDLE  ALT=\"+sin%28A%2BB%29=sinAcosB%2BcosAsinB+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "giving <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sin2A=2sinAcosA+ ALIGN=MIDDLE  ALT=\"+sin2A=2sinAcosA+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sinxcosx+=%281%2F2%29sin2x ALIGN=MIDDLE  ALT=\"+sinxcosx+=%281%2F2%29sin2x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So then:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28sinx%29%28cosx%29%28cos+2x%29+=%281%2F2%29sin2xcos2x=%281%2F4%29sin4x+ ALIGN=MIDDLE  ALT=\"+%28sinx%29%28cosx%29%28cos+2x%29+=%281%2F2%29sin2xcos2x=%281%2F4%29sin4x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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