document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=309216>Question 309216</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you help solve   1.- sin 4x=4sinxcosxcos2x    2.- tan(x-45grades)+ tan(x+45grades)=2tan2x       3.- sin(x+y)+ sin(x-y)=2sinxcosy     4.- let sin s=3/5,sin t= -12/13, s in quadrant I and t in quadrant III. find cos(s+t); find sin(s-t);  find tan(s+t) factor tan^3x-csc^3x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #221087 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=221087\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Garamond\" size=\"+2\">\r<BR>\n" );
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document.write( "One problem per post.  Which one is most important to you?\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
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