document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1149067>Question 1149067</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use a sum or difference formula or a half angle formula to determine the value of the trigonometric functions. Give exact answers. Do not use decimal numbers. The answer should be a fraction or an arithmetic expression. If the answer involves a square root it should be enter as sqrt; e.g. the square root of 2 should be written as sqrt(2). \r<BR>\n" );
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document.write( "sin(3pi/8)=<BR>\n" );
document.write( "sin(13pi/12)=<BR>\n" );
document.write( "cos(7pi/12)=<BR>\n" );
document.write( "cos(pi/12)= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #770391 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=770391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Look up \"Half angle formulas\" on Wikipedia.<BR>\n" );
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