document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=998939>Question 998939</A>: <I><SPAN STYLE=\"word-break: break-all;\"> cos y/ 1-tan y+ (sin y/1-cot y)=sin y +cos y  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #616641 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52855)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=616641\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%28y%29%29%2F%281-tan%28y%29%29 ALIGN=MIDDLE  ALT=\"%28cos%28y%29%29%2F%281-tan%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%28y%29%29%2F%281-cot%28y%29%29 ALIGN=MIDDLE  ALT=\"%28sin%28y%29%29%2F%281-cot%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%28y%29%29%2F%281+-+%28sin%28y%29%2F%28cos%28y%29%29%29%29 ALIGN=MIDDLE  ALT=\"%28cos%28y%29%29%2F%281+-+%28sin%28y%29%2F%28cos%28y%29%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%28y%29%29%2F%281+-+%28cos%28y%29%2F%28sin%28y%29%29%29%29 ALIGN=MIDDLE  ALT=\"%28sin%28y%29%29%2F%281+-+%28cos%28y%29%2F%28sin%28y%29%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%28y%29%29%2F%28%28%28cos%28y%29+-+sin%28y%29%29%2F%28cos%28y%29%29%29%29 ALIGN=MIDDLE  ALT=\"%28cos%28y%29%29%2F%28%28%28cos%28y%29+-+sin%28y%29%29%2F%28cos%28y%29%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%28y%29%29%2F%28%28%28sin%28y%29+-+cos%28y%29%29%2F%28sin%28y%29%29%29%29 ALIGN=MIDDLE  ALT=\"%28sin%28y%29%29%2F%28%28%28sin%28y%29+-+cos%28y%29%29%2F%28sin%28y%29%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29 ALIGN=MIDDLE  ALT=\"%28cos%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%5E2%28y%29%29%2F%28sin%28y%29+-+cos%28y%29%29 ALIGN=MIDDLE  ALT=\"%28sin%5E2%28y%29%29%2F%28sin%28y%29+-+cos%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29 ALIGN=MIDDLE  ALT=\"%28cos%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29 ALIGN=MIDDLE  ALT=\"%28sin%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%5E2%28y%29+-+sin%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29 ALIGN=MIDDLE  ALT=\"%28cos%5E2%28y%29+-+sin%5E2%28y%29%29%2F%28cos%28y%29+-+sin%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28cos%28y%29+-+sin%28y%29%29%2A%28cos%28y%29+%2B+sin%28y%29%29%29%2F%28cos%28y%29+-+sin%28y%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cross%28%28cos%28y%29+-+sin%28y%29%29%29%2A%28cos%28y%29+%2B+sin%28y%29%29%29%2F%28cross%28%28cos%28y%29+-+sin%28y%29%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > = cos(y) + sin(y).\r<BR>\n" );
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document.write( "It is what has to be proved.\r<BR>\n" );
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