document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=589610>Question 589610</A>: <I><SPAN STYLE=\"word-break: break-all;\"> So confused on this! Help would be so appreciated<BR>\n" );
document.write( "If sec (theta)= -13/5 and 90 degrees < theta < 180 degrees, find the exact value of sin 2(theta) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #374930 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=374930\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If sec (theta)= -13/5 and 90 degrees < theta < 180 degrees, find the exact value of sin 2(theta)<BR>\n" );
document.write( "**<BR>\n" );
document.write( "use x for theta\r<BR>\n" );
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document.write( "In quadrant II [90º-180º]<BR>\n" );
document.write( "if sec x=-13/5<BR>\n" );
document.write( "cos x=-5/13<BR>\n" );
document.write( "sin x=12/13<BR>\n" );
document.write( "..<BR>\n" );
document.write( "sin 2x=2sinx cos x=2*12/13*-5/13=-120/169 </SPAN>\n" );
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