document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=279377>Question 279377</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the exact value of sin^2 pi/6 -2 sin pi/6 cos pi/6 + cos^2 (-pi/6)?<BR>\n" );
document.write( "The answer I got is 2 + sqrt3/2. Did I do it right. This question is driving me crazy the other answer I got was 2 - sqrt3?? Help please cause I'm obviously doing something wrong. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #203141 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=203141\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> pi/6 is 30º\r<BR>\n" );
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document.write( "cos(30) = cos(-30) = [sqrt(3)] / 2\r<BR>\n" );
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document.write( "sin(30) = 1 / 2\r<BR>\n" );
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document.write( "(1/2)^2 - 2[(1/2)((sqrt(3))/2)] + [(sqrt(3)) / 2]^2\r<BR>\n" );
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document.write( "(1/4) - [(sqrt(3)) / 2] + (3/4)\r<BR>\n" );
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document.write( "1 - [(sqrt(3)) / 2] ___ or ___ [2 - sqrt(3)] / 2\r<BR>\n" );
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