document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=285553>Question 285553</A>: <I><SPAN STYLE=\"word-break: break-all;\"> use pi/3 + pi/4=7pi/12 find the exact value of sin 7pi/12 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #206960 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=206960\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> use pi/3 + pi/4=7pi/12 find the exact value of sin 7pi/12<BR>\n" );
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document.write( "sin(pi/3) = 1/2<BR>\n" );
document.write( "cos(pi/3) = sqrt(3)/2<BR>\n" );
document.write( "sin(pi/4) = sqrt(2)/2<BR>\n" );
document.write( "cos(pi/4) = sqrt(2)/2<BR>\n" );
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document.write( "sin(A+B) = sin(A)cos(B) + sin(B)cos(A)<BR>\n" );
document.write( "sin(7pi/12) = 1/2*sqrt(2)/2 + sqrt(3)/2*sqrt(2)/2<BR>\n" );
document.write( "= sqrt(2)/4 + sqrt(6)/4<BR>\n" );
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document.write( " </SPAN>\n" );
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