document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=590645>Question 590645</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find exact value of   [tan(5pi/4)-tan(pi/12)]/1+tan(5pi/4)tan(pi/12) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #375222 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=375222\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find exact value of [tan(5pi/4)-tan(pi/12)]/1+tan(5pi/4)tan(pi/12)<BR>\n" );
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document.write( "use tan addition identity: tan (s-t)=(tan s-tan t)/(1+tan s tan t)<BR>\n" );
document.write( "For given problem:<BR>\n" );
document.write( "[tan(5pi/4)-tan(pi/12)]/1+tan(5pi/4)tan(pi/12)=tan(5&#960;/4-&#960;/12)<BR>\n" );
document.write( "=tan(15&#960;/12-&#960;/12)=tan(14&#960;/12)<BR>\n" );
document.write( "=tan(7&#960;/6) (ans) </SPAN>\n" );
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