document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=978525>Question 978525</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove that tant=sin2t÷(1+cos2t) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #599955 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=599955\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "Prove that tant=sin2t÷(1+cos2t)<BR>\n" );
document.write( "tant = 2sintcost/1 + (2cos^2t -1)<BR>\n" );
document.write( "Convert sin2t - 2sintcost<BR>\n" );
document.write( "Convert cos2t - 2cos^2t - 1<BR>\n" );
document.write( "tant = 2sintcost/1+(2cos^2t - 1)<BR>\n" );
document.write( "Sort out brackets<BR>\n" );
document.write( "tant = 2sintcost/2cos^2t<BR>\n" );
document.write( "Cancel out 2 top and bottom<BR>\n" );
document.write( "Cancel out cost top and one of cost at bottom<BR>\n" );
document.write( "tant = sint/cost<BR>\n" );
document.write( "Hope this helps:-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );