document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=520738>Question 520738</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use references angles to find the exact value of each expression. Sin 300  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #346205 by </B><A HREF=/tutors/aboutme.mpl?userid=mamiya><B>mamiya(56)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mamiya><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=346205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use references angles to find the exact value of each expression. Sin 300\r<BR>\n" );
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document.write( "  sin 300= sin (180+120)<BR>\n" );
document.write( "         = sin(180)cos(120) + sin(120)cos(180)     <BR>\n" );
document.write( "         = 0*cos(120) + sin(120)(-1)<BR>\n" );
document.write( "         = -1sin(120)  <BR>\n" );
document.write( "         = -1sin(180-120)  since the sinus of two supplementary angles are the same.\r<BR>\n" );
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document.write( "so sin 300= -1sin60<BR>\n" );
document.write( "          = -(sqrt 3)/2 </SPAN>\n" );
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