document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=312929>Question 312929</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find sin 0 if cos 0=-2/3 and 90 degree<0>180 degrees </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #223726 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=223726\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find sin(w) if cos(w) = -2/3 and 90 degree< w <180 degrees<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "By definition cos(w) = x/r<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Since cos(w) = -2/3, x = -2 and r = 3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "r^2 = x^2 + y^2<BR>\n" );
document.write( "9 = (-2)^2 + y^2<BR>\n" );
document.write( "y = sqrt(5)<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "By definition sin(x) = y/r<BR>\n" );
document.write( "Ans: sin(x) = sqrt(5)/3<BR>\n" );
document.write( "============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============================<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );