document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1173055>Question 1173055</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If θ= 2π/3, then\r<BR>\n" );
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document.write( "sin(θ) equals:\r<BR>\n" );
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document.write( "cos(θ) equals:\r<BR>\n" );
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document.write( "tan(θ) equals:\r<BR>\n" );
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document.write( "sec(θ) equals: </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #798204 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=798204\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2pi/3 * 180 / pi = 120 degrees.<BR>\n" );
document.write( "reference angle for 120 degrees is 60 degrees.<BR>\n" );
document.write( "sin and cosec is positive in Q1 and Q2<BR>\n" );
document.write( "cos and sec is positive in Q1 and Q4; negative in Q2 and Q3.<BR>\n" );
document.write( "tan and cot <BR>\n" );
document.write( "is positive in Q1 and Q3; negative in Q2 and Q4.<BR>\n" );
document.write( "sin(60) = sqrt(3)/2 = .8660254038<BR>\n" );
document.write( "cosec(60) = 2sqrt(3)/3 = 1.154700538<BR>\n" );
document.write( "cos(60) = 1/2 = .5<BR>\n" );
document.write( "sec(60) = 2 = 2<BR>\n" );
document.write( "tan(60) = sqrt(3) = 1.732050808<BR>\n" );
document.write( "cot(60) = sqrt(3)/3 = .5773502692\r<BR>\n" );
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document.write( "that's for the reference angle of 60 degrees.<BR>\n" );
document.write( "for 120 degrees, the values are the same, except:<BR>\n" );
document.write( "sin and cosec are positive.<BR>\n" );
document.write( "cos and sec are negative.<BR>\n" );
document.write( "tan and cot are negative.\r<BR>\n" );
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document.write( "sin = sine<BR>\n" );
document.write( "cos = cosine<BR>\n" );
document.write( "cosec = cosecant<BR>\n" );
document.write( "sec = secant<BR>\n" );
document.write( "tan = tangent<BR>\n" );
document.write( "cot = cotangent\r<BR>\n" );
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document.write( "the angle in the unit circle would look like this:\r<BR>\n" );
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document.write( "the equivalent angle in radians is found by multiplying the angle in degrees by 180 / pi.\r<BR>\n" );
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document.write( "60 degrees * pi / 180 = 1/3 * pi = pi/3<BR>\n" );
document.write( "30 degrees * pi / 180 = 1/6 * pi = pi/6<BR>\n" );
document.write( "120 degrees * pi / 180 = 2/3 * pi = 2pi/3\r<BR>\n" );
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document.write( " </SPAN>\n" );
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