document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=461749>Question 461749</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the exact value of tan ((67 1/2)degrees) using half angle? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #316734 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=316734\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the exact value of tan ((67 1/2)degrees) using half angle?<BR>\n" );
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document.write( "Half angle formula for tan:<BR>\n" );
document.write( "tan x/2=sin x/(1+cos x)<BR>\n" );
document.write( "For given problem:<BR>\n" );
document.write( "67.5=135/2=sin 135/(1+cos 135)<BR>\n" );
document.write( "=sin45/(1-cos 45) (Reference angle 45º in quadrant II where sine is positive, cosine negative.)<BR>\n" );
document.write( "=(&#8730;2/2)/(1-&#8730;2/2)<BR>\n" );
document.write( "=&#8730;2/(2-&#8730;2) (ans) </SPAN>\n" );
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