document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1110251>Question 1110251</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove the identity.\r<BR>\n" );
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document.write( "2tan(x)/1+tan^2(x)=sin(2x) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #725265 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=725265\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2tan(x)/1+tan^2(x)=sin(2x)<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2tan%28x%29%2F1%2Btan%5E2%28x%29=sin%282x%29 ALIGN=MIDDLE  ALT=\"2tan%28x%29%2F1%2Btan%5E2%28x%29=sin%282x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2tan%28x%29+%2B+tan%5E2%28x%29=sin%282x%29 ALIGN=MIDDLE  ALT=\"2tan%28x%29+%2B+tan%5E2%28x%29=sin%282x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2tan%28pi%2F4%29+%2B+tan%5E2%28pi%2F4%29=sin%28pi%2F2%29 ALIGN=MIDDLE  ALT=\"2tan%28pi%2F4%29+%2B+tan%5E2%28pi%2F4%29=sin%28pi%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2 + 1 = 0<BR>\n" );
document.write( "Not an identity.<BR>\n" );
document.write( " </SPAN>\n" );
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