document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=904523>Question 904523</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi,\r<BR>\n" );
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document.write( " I have the following answer;<BR>\n" );
document.write( " cos(2x)=cos(x=x)=cos^2x-sin^2=cos^2-(1-cos^2x)=2cos^2-1<BR>\n" );
document.write( " for<BR>\n" );
document.write( " cos(A+B)=cos A cos B- sin A sin B, find cos(2x)\r<BR>\n" );
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document.write( " i need one of the following answers:<BR>\n" );
document.write( "a)cos x sin x<BR>\n" );
document.write( "b)cos x - sin x<BR>\n" );
document.write( "c)sin^2x - cos^2x<BR>\n" );
document.write( "d)cos^2x - sin^2x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548782 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=548782\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos(2x)= cos^2x - sin^2x  RE:  Double Angle Formula </SPAN>\n" );
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