document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=610017>Question 610017</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If cos B = -8/17 in quadrant II, find sin 7B. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #384333 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=384333\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If cos B = -8/17 in quadrant II, find sin 7B<BR>\n" );
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document.write( "arccosB(-8/17)&#8776;118.07º<BR>\n" );
document.write( "7B&#8776;7*118.07=826.51º<BR>\n" );
document.write( "sin7B=sin(826.51º)<BR>\n" );
document.write( "reference angle&#8776;826.51-720&#8776;106.51 (quadrant II were sin>0)<BR>\n" );
document.write( "sin 7B&#8776;.96 </SPAN>\n" );
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