document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=225038>Question 225038</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to verify this equation\r<BR>\n" );
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document.write( "cos^2x*sin^2x=1-2sin^2x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #168008 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=168008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How to verify this equation <BR>\n" );
document.write( "cos^2x*sin^2x=1-2sin^2x<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2%2830%29%2Asin%5E2%2830%29+=+1+-+2sin%5E2%2830%29 ALIGN=MIDDLE  ALT=\"cos%5E2%2830%29%2Asin%5E2%2830%29+=+1+-+2sin%5E2%2830%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3/4)*(1/4) =? 1 - 2(1/4)<BR>\n" );
document.write( "3/16 =? 1/2<BR>\n" );
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document.write( "That's not a good equation.  One case not equal is sufficient.<BR>\n" );
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