document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=974366>Question 974366</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please can you help me wit equation: calculate exact value of:  cos 105°  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #596278 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=596278\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos (60+45) would work\r<BR>\n" );
document.write( "\n" );
document.write( "cos(60)*cos(45)-sin(60)sin(45)<BR>\n" );
document.write( "(1/2)*(sqrt(2)/2)-(sqrt(3)/2)*sqrt(2)/2<BR>\n" );
document.write( "[sqrt(2)/4]-sqrt(6)/4=<BR>\n" );
document.write( "(1/4) (sqrt(2)-sqrt(6))<BR>\n" );
document.write( "(1/4)(-1.0352)<BR>\n" );
document.write( "=-0.2588 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );