document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=821182>Question 821182</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove the identity: \r<BR>\n" );
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document.write( "Sin2x (tan x + cot x) = 2\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #493955 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=493955\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Prove the identity:<BR>\n" );
document.write( "Sin2x (tan x + cot x) = 2 <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%282x%29%28tan%28x%29%2Bcot%28x%29%29=2 ALIGN=MIDDLE  ALT=\"sin%282x%29%28tan%28x%29%2Bcot%28x%29%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "start with left side:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%282x%29%28tan%28x%29%2Bcot%28x%29%29 ALIGN=MIDDLE  ALT=\"sin%282x%29%28tan%28x%29%2Bcot%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2sin%28x%29cos%28x%29%28sin%28x%29%2Fcos%28x%29%29%2B%28cos%28x%29%2Fsin%28x%29%29 ALIGN=MIDDLE  ALT=\"2sin%28x%29cos%28x%29%28sin%28x%29%2Fcos%28x%29%29%2B%28cos%28x%29%2Fsin%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2sin%28x%29cos%28x%29%28sin%5E2%28x%29%2Bcos%5E2%28x%29%29%2F%28cos%28x%29sin%28x%29%29 ALIGN=MIDDLE  ALT=\"2sin%28x%29cos%28x%29%28sin%5E2%28x%29%2Bcos%5E2%28x%29%29%2F%28cos%28x%29sin%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2sin%28x%29cos%28x%29%281%29%2F%28cos%28x%29sin%28x%29%29=2 ALIGN=MIDDLE  ALT=\"2sin%28x%29cos%28x%29%281%29%2F%28cos%28x%29sin%28x%29%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".,<BR>\n" );
document.write( "verified: left side=right side </SPAN>\n" );
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