document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=974438>Question 974438</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If tan(x)=5/4 and sin is less than 0, find cos(x). Thanks  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #596348 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=596348\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If tan(x)=5/4 and sin is less than 0, find cos(x). <BR>\n" );
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document.write( "Reference angle x is in quadrant III, where sin<0, cos<0<BR>\n" );
document.write( "Hypotenuse of reference right triangle=&#8730;(5^2+4^2)=&#8730;(25+16)=&#8730;41<BR>\n" );
document.write( "cos(x)=-4/&#8730;41=-(4&#8730;41)/41 </SPAN>\n" );
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