document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=930463>Question 930463</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the squared identities to simplify 2sin^2xsin^2x.\r<BR>\n" );
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document.write( "I REALLY NEED HELP WITH THIS PROBLEM :(((( </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #565061 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=565061\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3-4cos%282x%29%2Bcos%284x%29%2F4 ALIGN=MIDDLE  ALT=\"3-4cos%282x%29%2Bcos%284x%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > is = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2sin%5E4%28x%29 ALIGN=MIDDLE  ALT=\"2sin%5E4%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >....\r<BR>\n" );
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document.write( "here is proof:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2sin%5E2%28x%29sin%5E2%28x+%29 ALIGN=MIDDLE  ALT=\"2sin%5E2%28x%29sin%5E2%28x+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >...use <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2%28x%29=1-cos%5E2%28x%29 ALIGN=MIDDLE  ALT=\"sin%5E2%28x%29=1-cos%5E2%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%281-cos%5E2%28x%29%29%281-cos%5E2%28x%29%29+ ALIGN=MIDDLE  ALT=\"2%281-cos%5E2%28x%29%29%281-cos%5E2%28x%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%281-cos%5E2%28x%29%29%5E2+ ALIGN=MIDDLE  ALT=\"2%281-cos%5E2%28x%29%29%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%281-2cos%5E2%28x%29%2Bcos%5E4%28x%29%29 ALIGN=MIDDLE  ALT=\"2%281-2cos%5E2%28x%29%2Bcos%5E4%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282-4cos%5E2%28x%29%2B2cos%5E4%28x%29%29 ALIGN=MIDDLE  ALT=\"%282-4cos%5E2%28x%29%2B2cos%5E4%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.........since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2cos%5E4%28x%29=%281%2F4%29+%284cos%282x%29%2Bcos%284x%29%2B3%29=%28cos%282x%29%2Bcos%284x%29%2F4%2B3%2F4%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2-4cos%5E2%28x%29%2Bcos%282x%29%2Bcos%284x%29%2F4%2B3%2F4 ALIGN=MIDDLE  ALT=\"2-4cos%5E2%28x%29%2Bcos%282x%29%2Bcos%284x%29%2F4%2B3%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >........and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4cos%5E2%28x%29=2+%28cos%282x%29%2B1%29 ALIGN=MIDDLE  ALT=\"4cos%5E2%28x%29=2+%28cos%282x%29%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2-2%28cos%282x%29%2B1%29%2Bcos%282x%29%2Bcos%284x%29%2F4%2B3%2F4 ALIGN=MIDDLE  ALT=\"2-2%28cos%282x%29%2B1%29%2Bcos%282x%29%2Bcos%284x%29%2F4%2B3%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%282%29-2cos%282x%29-cross%282%29%2Bcos%282x%29%2Bcos%284x%29%2F4%2B3%2F4 ALIGN=MIDDLE  ALT=\"cross%282%29-2cos%282x%29-cross%282%29%2Bcos%282x%29%2Bcos%284x%29%2F4%2B3%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-cos%282x%29%2Bcos%284x%29%2F4%2B3%2F4 ALIGN=MIDDLE  ALT=\"-cos%282x%29%2Bcos%284x%29%2F4%2B3%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F4%29%28-4cos%282x%29%2Bcos%284x%29%2B3%29 ALIGN=MIDDLE  ALT=\"%281%2F4%29%28-4cos%282x%29%2Bcos%284x%29%2B3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283-4cos%282x%29%2Bcos%284x%29%29%2F4 ALIGN=MIDDLE  ALT=\"%283-4cos%282x%29%2Bcos%284x%29%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283-4cos%282x%29%2Bcos%284x%29%29%2F4=2sin%5E4%28x%29 ALIGN=MIDDLE  ALT=\"%283-4cos%282x%29%2Bcos%284x%29%29%2F4=2sin%5E4%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > but it's NOT simplified form...:-)<BR>\n" );
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