document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=738616>Question 738616</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove sin 2theta = 2tan theta/ 1 + tan^2 theta </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #450868 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=450868\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Prove sin 2theta = 2tan theta/ 1 + tan^2 theta<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%282x%29=2tan%28x%29%2F%281%2Btan%5E2%28x%29%29 ALIGN=MIDDLE  ALT=\"sin%282x%29=2tan%28x%29%2F%281%2Btan%5E2%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "start with right side:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2tan%28x%29%2F%281%2Btan%5E2%28x%29%29=%282sin%28x%29%2Fcos%28x%29%29%2F%281%2Bsin%5E2%28x%29%2Fcos%5E2%28x%29%29%0D%0A=%282sin%28x%29%2Fcos%28x%29%29%2F%28%28cos%5E2%28x%29%2Bsin%5E2%28x%29%29%2Fcos%5E2%28x%29%29%0D%0A=%282sin%28x%29%2Fcos%28x%29%29%2F%28%281%29%2F%28cos%5E2%28x%29%29%29=%282sin%28x%29%2Fcos%28x%29%29%2Acos%5E2%28x%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >=2sin(x)cos(x)=sin(2x)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );