document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=652615>Question 652615</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Evaluate without using a calculator by using ratios in a reference triangle.<BR>\n" );
document.write( "(a) cos 120 degrees <BR>\n" );
document.write( "(b) tan 300 degrees  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #408050 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=408050\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Evaluate without using a calculator by using ratios in a reference triangle.<BR>\n" );
document.write( "(a) cos 120 degrees<BR>\n" );
document.write( "use reference angle of 60º in quadrant II where cos<0<BR>\n" );
document.write( "cos 60º=-1/2 <BR>\n" );
document.write( "(b) tan 300 degrees<BR>\n" );
document.write( "use reference angle of 60º in quadrant IV where tan<0<BR>\n" );
document.write( "tan 60º=-&#8730;3  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );