document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=140797>Question 140797</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the exact value of the expression\r<BR>\n" );
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document.write( "cos(pi/12)cos(3pi/4) - sin(pi/12)sin(3pi/4)\r<BR>\n" );
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document.write( "I appreciate your help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #102466 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=102466\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos(pi/12)cos(3pi/4) - sin(pi/12)sin(3pi/4)<BR>\n" );
document.write( "=((sqrt(3)/2)(-sqrt(2)/2))-((1/2)(sqrt(2)/2))<BR>\n" );
document.write( "=-sqrt(6)/4 - sqrt(2)/4<BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-sqrt%286%29-sqrt%282%29%29%2F4 ALIGN=MIDDLE  ALT=\"%28-sqrt%286%29-sqrt%282%29%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=-.965926<BR>\n" );
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document.write( "Ed </SPAN>\n" );
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