document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=875547>Question 875547</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Im stuck, please help me solve and go into detail <BR>\n" );
document.write( "Find the exact value<BR>\n" );
document.write( "Given that sin &#1256; = -4/5 with &#1256; in quadrant IV, find tan 2&#1256; <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 #528345 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=528345\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the exact value<BR>\n" );
document.write( "Given that sin &#1256; = -4/5 with &#1256; in quadrant IV, find tan 2&#1256; <BR>\n" );
document.write( "***<BR>\n" );
document.write( "you are working with a (3-4-5) reference right triangle in quadrant IV<BR>\n" );
document.write( "sin &#1256;=-4/5 (given)<BR>\n" );
document.write( "cos &#1256;=3/5<BR>\n" );
document.write( "sin 2&#1256;=2sin&#1256;cos&#1256;=2*-4/5*3/5=-24/25<BR>\n" );
document.write( "cos 2&#1256;=cos^2&#1256;-sin^2&#1256;=9/25-16/25=-7/25<BR>\n" );
document.write( "tan 2&#1256;-sin 2&#1256;/cos 2&#1256;=24/7<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "sin &#1256;=-4/5<BR>\n" );
document.write( "&#1256;&#8776;306.87&#730;<BR>\n" );
document.write( "2&#1256;&#8776;613.74&#730;<BR>\n" );
document.write( "tan 2&#1256;&#8776;3.4286…<BR>\n" );
document.write( "exact value as calculated=24/7&#8776;3.4287… </SPAN>\n" );
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