document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=610166>Question 610166</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sin120+cos^2 300/tan^2 135 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #384372 by </B><A HREF=/tutors/aboutme.mpl?userid=jsmallt9><B>jsmallt9(3758)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jsmallt9><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=384372\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sin(120)<BR>\n" );
document.write( "Since 120 is in the 2nd quadrant, the reference angle is 180 - 120 or 60 degrees.<BR>\n" );
document.write( "sin(60) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%283%29%2F2 ALIGN=MIDDLE  ALT=\"sqrt%283%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Since sin is positive in the 2nd quadrant sin(120) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%283%29%2F2 ALIGN=MIDDLE  ALT=\"sqrt%283%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "cos(300)<BR>\n" );
document.write( "Since 300 is in the 4th quadrant, the reference angle is 360-300 = 60 degrees.<BR>\n" );
document.write( "cos(60) = 1/2<BR>\n" );
document.write( "Since cos is positive in the 4th quadrant, cos(300) = 1/2 and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2%28300%29+=+%281%2F2%29%5E2+=+1%2F4 ALIGN=MIDDLE  ALT=\"cos%5E2%28300%29+=+%281%2F2%29%5E2+=+1%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "tan(135)<BR>\n" );
document.write( "Since 135 is in the 2nd quadrant, the reference angle is 180 - 135 = 45 degrees.<BR>\n" );
document.write( "tan(45) = 1<BR>\n" );
document.write( "Since tan is negative in the 2nd quadrant, tan(135) = -1 and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%5E2%28135%29+=+%28-1%29%5E2+=+1 ALIGN=MIDDLE  ALT=\"tan%5E2%28135%29+=+%28-1%29%5E2+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Since I cannot tell if you problem is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28120%29%2Bcos%5E2%28300%29%2Ftan%5E2%28135%29 ALIGN=MIDDLE  ALT=\"sin%28120%29%2Bcos%5E2%28300%29%2Ftan%5E2%28135%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%28120%29%2Bcos%5E2%28300%29%29%2Ftan%5E2%28135%29 ALIGN=MIDDLE  ALT=\"%28sin%28120%29%2Bcos%5E2%28300%29%29%2Ftan%5E2%28135%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I'll leave it up to you to substitute in the values for sin(120), <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2%28300%29 ALIGN=MIDDLE  ALT=\"cos%5E2%28300%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%5E2%28135%29 ALIGN=MIDDLE  ALT=\"tan%5E2%28135%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and simplify. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );