document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=858028>Question 858028</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Express the sin (-140°) as a function of a positive acute angle\r<BR>\n" );
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document.write( "1) sin 40°<BR>\n" );
document.write( "2) tan 40°<BR>\n" );
document.write( "3) -sin 40°<BR>\n" );
document.write( "4) -tan 40° </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #516978 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=516978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Express the sin (-140°) as a function of a positive acute angle<BR>\n" );
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document.write( "quadrant: QIII where sin is negative.<BR>\n" );
document.write( "Angle:: 360-140 = 220 <BR>\n" );
document.write( "Reference Angle:: 220 = 180+40<BR>\n" );
document.write( "RA =  40 degrees<BR>\n" );
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document.write( "sin(-140) = -sin(40)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
document.write( "1) sin 40°<BR>\n" );
document.write( "2) tan 40°<BR>\n" );
document.write( "3) -sin 40°<BR>\n" );
document.write( "4) -tan 40°<BR>\n" );
document.write( " </SPAN>\n" );
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