document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=607756>Question 607756</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the exact value of:   tan25 +tan110/ 1-tan25 tan110 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #382962 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=382962\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the exact value of: tan25 +tan110/ 1-tan25 tan110<BR>\n" );
document.write( "use tan addition formula:<BR>\n" );
document.write( "tan(s+t)=(tan s+tan t)/(1-tan s tan t)<BR>\n" );
document.write( "For given problem:<BR>\n" );
document.write( "(tan25 +tan110)/ (1-tan25 tan110)<BR>\n" );
document.write( "=tan(25+110)<BR>\n" );
document.write( "=tan (135)<BR>\n" );
document.write( "=-1 (ref angle of 45º in quadrant II where tan<0) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );