document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452834>Question 452834</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the value of the trigonometric expression.    cos 150degrees cos 120 degrees - sin 150 degrees sin 120 degrees </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311232 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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/cgi-bin/show-face.mpl?user=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=311232\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos(150 + 120) =  cos 150* cos 120 - sin 150*sin 120 = cos 270 = 0. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );