document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=521601>Question 521601</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Exact value of cos^-1(tan(3pie/4)) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #346794 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=346794\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Exact value of cos^-1(tan(3pie/4))<BR>\n" );
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document.write( "tan(3pie/4)=-1 (reference angle in quadrant II where tan<0)<BR>\n" );
document.write( "cos^-1(-1)=&#960; </SPAN>\n" );
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