document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=979410>Question 979410</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write the expression as either the sine, cosine, or tangent of a single angle. <BR>\n" );
document.write( "sin ( pi/2 ) cos (pi/7) + cos ( pi/2) sin (pi/7)\r<BR>\n" );
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document.write( "I really confused on this question. Please help, I really want to learn hoe to do this for future references! Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #600668 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=600668\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Learn the angle sum and difference identities for cosine and for sine.\r<BR>\n" );
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document.write( "Your example should fit angle sum or difference for sine.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28alpha%2B-+beta%29=sin%28alpha%29cos%28beta%29%2B-+cos%28alpha%29sin%28beta%29 ALIGN=MIDDLE  ALT=\"sin%28alpha%2B-+beta%29=sin%28alpha%29cos%28beta%29%2B-+cos%28alpha%29sin%28beta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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