document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=928224>Question 928224</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove the trig identity (sinx/1-sinx)-(sin x/1+sinx)=2tan^2x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #563533 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=563533\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28x%29%2F%281-sin%28x%29%29-sin+%28x%29%2F%281%2Bsin%28x%29%29=2tan%5E2%28x%29 ALIGN=MIDDLE  ALT=\"sin%28x%29%2F%281-sin%28x%29%29-sin+%28x%29%2F%281%2Bsin%28x%29%29=2tan%5E2%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "start with left side:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28x%29%2F%281-sin%28x%29%29-sin+%28x%29%2F%281%2Bsin%28x%29%29 ALIGN=MIDDLE  ALT=\"sin%28x%29%2F%281-sin%28x%29%29-sin+%28x%29%2F%281%2Bsin%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=%28sin%28x%29%281%2Bsin%28x%29%29-sin+%28x%29%281-sin%28x%29%29%29%2F%28%281-sin%28x%29%29%281%2Bsin%28x%29%29%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=%28cross%28sin%28x%29%29%2Bsin%5E2%28x%29-cross%28sin+%28x%29%29%2Bsin%5E2%28x%29%29%2F%281-sin%5E2%28x%29%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=%282sin%5E2%28x%29%29%2F%281-sin%5E2%28x%29%29 ALIGN=MIDDLE  ALT=\"%282sin%5E2%28x%29%29%2F%281-sin%5E2%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=...use identity <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1-sin%5E2%28x%29=cos%5E2%28x%29 ALIGN=MIDDLE  ALT=\"1-sin%5E2%28x%29=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%28sin%5E2%28x%29%2Fcos%5E2%28x%29%29 ALIGN=MIDDLE  ALT=\"2%28sin%5E2%28x%29%2Fcos%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=2tan%5E2%28x%29 ALIGN=MIDDLE  ALT=\"2tan%5E2%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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