document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=808185>Question 808185</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the given information to evaluate each expression. (Enter your answers in exact form.)<BR>\n" );
document.write( "cot s = 9 with &#960; < s < 3&#960;/2\r<BR>\n" );
document.write( "\n" );
document.write( "a.) sin 2s<BR>\n" );
document.write( "b.) cos 2s<BR>\n" );
document.write( "c.) tan 2s<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #486870 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=486870\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the given information to evaluate each expression. (Enter your answers in exact form.)<BR>\n" );
document.write( "cot s = 9 with &#960; < s < 3&#960;/2<BR>\n" );
document.write( "Given angle s is in quadrant III, where sin<0, cos<0, tan>0<BR>\n" );
document.write( "Hypotenuse of reference right triangle=&#8730;(1^2+9^2)=&#8730;(1+81)=&#8730;82<BR>\n" );
document.write( "sin s=-1/&#8730;82=-&#8730;82/82<BR>\n" );
document.write( "cos s=-9/&#8730;82=-9&#8730;82/82<BR>\n" );
document.write( "tan s=1/9<BR>\n" );
document.write( "..<BR>\n" );
document.write( "a.) sin2s=2sin(s)cos(s)=2(-&#8730;82/82)(-9&#8730;82/82)=1476/6724<BR>\n" );
document.write( "b.) cos2s=cos^2(s)-sin^2(s)=81/82-1/82=80/82<BR>\n" );
document.write( "c.) tan2s=2tan(s)/(1-tan^2(s)=2/9/(1-1/81)=(2/9)/(80/81)=18/80\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );