document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=682406>Question 682406</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Cot x + tan x = 2 csc2x<BR>\n" );
document.write( "Prove the following is an identity.<BR>\n" );
document.write( "Having a difficult time fitting the left side to equal the right.<BR>\n" );
document.write( "I know that cot x= cos x/ sin x and tan x = sin x / cos x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #423255 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=423255\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Cot x + tan x = 2 csc2x<BR>\n" );
document.write( "Prove the following is an identity.<BR>\n" );
document.write( "**<BR>\n" );
document.write( "start with left side:<BR>\n" );
document.write( "Cot x + tan x=cosx/sinx+sinx/cosx=(cos^2x+sin^2x)/sinx cosx<BR>\n" );
document.write( "=1/sinx cosx=2/2sinx cosx=2/sin(2x)=2csc(2x)<BR>\n" );
document.write( "verified:<BR>\n" );
document.write( "left side=right side<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );