document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=980061>Question 980061</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Please help me solve <BR>\n" );
document.write( "Find the exact value of <BR>\n" );
document.write( "a. sin 300°   <BR>\n" );
document.write( "b. tan(405°)(Hint:405° =360° +45°)<BR>\n" );
document.write( "c. cot   (13&#960;/3) (Hint:13&#960;/3= 4&#960;+&#960;/3)    </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #601274 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=601274\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I'll do the first two parts to get you started.\r<BR>\n" );
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document.write( "a)\r<BR>\n" );
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document.write( "300 degrees is in quadrant IV. The reference angle formula for quadrant IV is\r<BR>\n" );
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document.write( "R = 360 - x\r<BR>\n" );
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document.write( "where R is the reference angle and x is the given angle, so, \r<BR>\n" );
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document.write( "R = 360 - x<BR>\n" );
document.write( "R = 360 - 300<BR>\n" );
document.write( "R = 60\r<BR>\n" );
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document.write( "Now use either a 30-60-90 triangle, or a unit circle to find that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%2860%29+=+%28sqrt%283%29%29%2F2 ALIGN=MIDDLE  ALT=\"sin%2860%29+=+%28sqrt%283%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Because this angle (300 degrees) is in Q4, we know sine is negative\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28300%29+=+-sin%2860%29+=+-%28sqrt%283%29%29%2F2 ALIGN=MIDDLE  ALT=\"sin%28300%29+=+-sin%2860%29+=+-%28sqrt%283%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Final Answer: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28300%29+=+-%28sqrt%283%29%29%2F2 ALIGN=MIDDLE  ALT=\"sin%28300%29+=+-%28sqrt%283%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "b)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28a%2Bb%29+=+%28tan%28a%29%2Btan%28b%29%29%2F%281-tan%28a%29%2Atan%28b%29%29 ALIGN=MIDDLE  ALT=\"tan%28a%2Bb%29+=+%28tan%28a%29%2Btan%28b%29%29%2F%281-tan%28a%29%2Atan%28b%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28360%2B45%29+=+%28tan%28360%29%2Btan%2845%29%29%2F%281-tan%28360%29%2Atan%2845%29%29 ALIGN=MIDDLE  ALT=\"tan%28360%2B45%29+=+%28tan%28360%29%2Btan%2845%29%29%2F%281-tan%28360%29%2Atan%2845%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28360%2B45%29+=+%280%2B1%29%2F%281-0%2A1%29 ALIGN=MIDDLE  ALT=\"tan%28360%2B45%29+=+%280%2B1%29%2F%281-0%2A1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28360%2B45%29+=+tan%28405%29+=+1 ALIGN=MIDDLE  ALT=\"tan%28360%2B45%29+=+tan%28405%29+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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