document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=672742>Question 672742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How is cos pi/4 + cos pi/6 different than cos (pi/4 + pi/6)? Wouldn't the second one distribute giving you the same answer? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #418280 by </B><A HREF=/tutors/aboutme.mpl?userid=fcabanski><B>fcabanski(1391)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fcabanski><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=418280\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In the case of trig functions what is inside the parentheses is the angle value the trig function acts upon.  cos 30 degrees + cos 60 degrees is not equal to cos (30+60) = cos(90) degrees.<P><BR>\n" );
document.write( "cos pi/4 = .707 and cos pi/6 = .866.  Their sum is 1.573.<P><BR>\n" );
document.write( "cos (pi/4 + pi/6) is cos (10pi/24) = .259.<BR>\n" );
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