document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=641343>Question 641343</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following trigonometric equation analytically (using identities if necessary for exact values if possible)for values of x for 0<x<2pi.\r<BR>\n" );
document.write( "\n" );
document.write( "sin 8x cos 7x - cos 8x sin 7x = 0\r<BR>\n" );
document.write( "\n" );
document.write( "Simplify and use pi as needed. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #403608 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=403608\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sin 8x cos 7x - cos 8x sin 7x = 0 <BR>\n" );
document.write( "======<BR>\n" );
document.write( "Formula: sin(x-y) = sinx*cosy - cosx*siny<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Your problem:<BR>\n" );
document.write( "sin 8x cos 7x - cos 8x sin 7x = 0 <BR>\n" );
document.write( "---<BR>\n" );
document.write( "sin(8x-7x) = 0<BR>\n" );
document.write( "sin(x) = 0<BR>\n" );
document.write( "x = 0 or pi or 2pi etc.<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );