document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1028236>Question 1028236</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If -90°<&#4928;<0° and tan&#4928;=-2/3,What is the value of cos&#4928;? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643363 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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/cgi-bin/show-face.mpl?user=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=643363\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In quadrant IV, cosine is positive...to find it, you will need to find the hypotenuse...here that would be sqrt(-2*-2 + 3*3) = sqrt(13)...\r<BR>\n" );
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document.write( "cos x = adjacent/hypotenuse = 3/sqrt(13) = 3*sqrt(13)/13  </SPAN>\n" );
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