document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1156524>Question 1156524</A>: <I><SPAN STYLE=\"word-break: break-all;\"> compute sin(18) + sin(42) + sin(78) + sin (102) / cos(12) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #779255 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=779255\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Use the identities for sin(A+B) and sin(A-B) and simplify....<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%2818%29+%2B+sin%2842%29+%2B+sin%2878%29+%2B+sin+%28102%29%29+%2F+cos%2812%29 ALIGN=MIDDLE  ALT=\"%28sin%2818%29+%2B+sin%2842%29+%2B+sin%2878%29+%2B+sin+%28102%29%29+%2F+cos%2812%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%2830-12%29+%2B+sin%2830%2B12%29+%2B+sin%2890-12%29+%2B+sin+%2890%2B12%29%29+%2F+cos%2812%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sin%2830%29cos%2812%29-cos%2830%29sin%2812%29+%2B+sin%2830%29cos%2812%29%2Bcos%2830%29sin%2812%29+%2B+sin%2890%29cos%2812%29-cos%2890%29sin%2812%29+%2B+sin%2890%29cos%2812%29%2Bcos%2890%29sin%2812%29%29%2Fcos%2812%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2Asin%2830%29cos%2812%29%2B2%28sin%2890%29cos%2812%29%29%29%2Fcos%2812%29 ALIGN=MIDDLE  ALT=\"%282%2Asin%2830%29cos%2812%29%2B2%28sin%2890%29cos%2812%29%29%29%2Fcos%2812%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2sin%2830%29%2B2sin%2890%29+=+2%281%2F2%29%2B2%281%29+=+1%2B2+=+3 ALIGN=MIDDLE  ALT=\"2sin%2830%29%2B2sin%2890%29+=+2%281%2F2%29%2B2%281%29+=+1%2B2+=+3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER: 3<br><BR>\n" );
document.write( " </SPAN>\n" );
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