document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=878735>Question 878735</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If cos &#920; = -4/7 , what are the values of sin &#920; and tan &#920;?\r<BR>\n" );
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document.write( "please help, thank you!<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 #530230 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=530230\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos = -4/7<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28t%29+=+sqrt%281+-+cos%5E2%28t%29%29+=+sqrt%281+-+16%2F49%29+=+sqrt%2833%2F49%29 ALIGN=MIDDLE  ALT=\"sin%28t%29+=+sqrt%281+-+cos%5E2%28t%29%29+=+sqrt%281+-+16%2F49%29+=+sqrt%2833%2F49%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "sin = sqrt(33)/7 or -sqrt(33)/7<BR>\n" );
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document.write( "tan = sin/cos = sqrt(33)/4 or -sqrt(33)/4<BR>\n" );
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document.write( "The signs depend on the quadrant.<BR>\n" );
document.write( "cos = -4/7 --> Q2 or Q3 </SPAN>\n" );
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