document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1036928>Question 1036928</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the exact value of each of the following. (Hint: you may need Angle Sum/Difference, Double Angle, or Half Angle Identities):\r<BR>\n" );
document.write( "\n" );
document.write( "a. cos(13pi/12)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "b. sin(pi/8)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "c. tan(2X) if cosX = 5/6 and X is in Quadrant 1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #651685 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=651685\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the exact value of each of the following. (Hint: you may need Angle Sum/Difference, Double Angle, or Half Angle Identities):\r<BR>\n" );
document.write( "\n" );
document.write( "a. cos(13pi/12)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "b. sin(pi/8)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "c. tan(2X) if cosX = 5/6 and X is in Quadrant 1<BR>\n" );
document.write( "=====================<BR>\n" );
document.write( "Look up \"half angle formulas\" on Wikipedia.<BR>\n" );
document.write( "It's covered well there. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );