document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1058611>Question 1058611</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with the following question.\r<BR>\n" );
document.write( "\n" );
document.write( "Prove this identity:\r<BR>\n" );
document.write( "\n" );
document.write( "(1-cos^2x)(1+cos^2x) = 2sin^2x - sin^4x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #673709 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10553)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=673709\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Please help me with the following question.\r<BR>\n" );
document.write( "\n" );
document.write( "Prove this identity:\r<BR>\n" );
document.write( "\n" );
document.write( "(1-cos^2x)(1+cos^2x) = 2sin^2x - sin^4x<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><b><u>LHS:</b></u><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281+-+cos%5E2+%28x%29%29%281+%2B+cos%5E2+%28x%29%29+=+2+sin%5E2+%28x%29+-+sin%5E4+%28x%29 ALIGN=MIDDLE  ALT=\"%281+-+cos%5E2+%28x%29%29%281+%2B+cos%5E2+%28x%29%29+=+2+sin%5E2+%28x%29+-+sin%5E4+%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2+%28x%29%281+%2B+%28+1+-+sin%5E2+%28x%29%29%29 ALIGN=MIDDLE  ALT=\"sin%5E2+%28x%29%281+%2B+%28+1+-+sin%5E2+%28x%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > --- Replacing <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C+1+-+cos%5E2+%28x%29%2C+with%2C+sin%5E2+%28x%29%2C+cos%5E2+%28x%29%2C+with%2C+1+-+sin%5E2+%28x%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2+%28x%29%282+-+sin%5E2+%28x%29%29 ALIGN=MIDDLE  ALT=\"sin%5E2+%28x%29%282+-+sin%5E2+%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%282sin%5E2+%28x%29+-+sin%5E4+%28x%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%282sin%5E2+%28x%29+-+sin%5E4+%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ------- DISTRIBUTING (Same as RHS) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );