document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=369999>Question 369999</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the sum or difference identity for the follow:\r<BR>\n" );
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document.write( "sin 165<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #263981 by </B><A HREF=/tutors/aboutme.mpl?userid=jsmallt9><B>jsmallt9(3759)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jsmallt9><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=263981\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> With the 5 at the end of 165, you should be thinking that a multiple of 45 would be involved (because all the other special angles end in 0). Here are several possibilities:<BR>\n" );
document.write( "sin(165) = sin(120+45) = sin(120)*cos(45) + sin(45)*cos(120)<BR>\n" );
document.write( "sin(165) = sin(135+30) = sin(135)*cos(30) + sin(30)*cos(135)<BR>\n" );
document.write( "sin(165) = sin(210-45) = sin(210)*cos(45) - sin(45)*cos(210) </SPAN>\n" );
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