document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=752182>Question 752182</A>: <I><SPAN STYLE=\"word-break: break-all;\"> sin3A / sinA + cos3A / cosA = 4cos2A<BR>\n" );
document.write( "Please to do this using as least steps as possible please?\<BR>\n" );
document.write( "Thanks!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #457725 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=457725\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A=acute angle<BR>\n" );
document.write( "sin3A / sinA + cos3A / cosA = 4cos2A<BR>\n" );
document.write( "I assume you meant to write given expression as follows:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E3%28A%29%2Fsin%28A%29%2Bcos%5E3%28A%29%2Fcos%28A%29=4cos%5E2%28A%29 ALIGN=MIDDLE  ALT=\"sin%5E3%28A%29%2Fsin%28A%29%2Bcos%5E3%28A%29%2Fcos%28A%29=4cos%5E2%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2%28A%29%2Bcos%5E2%28A%29=4cos%5E2%28A%29 ALIGN=MIDDLE  ALT=\"sin%5E2%28A%29%2Bcos%5E2%28A%29=4cos%5E2%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1=4cos%5E2%28A%29 ALIGN=MIDDLE  ALT=\"1=4cos%5E2%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "4cos^2(A)=1<BR>\n" );
document.write( "cos^2(A)=1/4<BR>\n" );
document.write( "cos(A)=1/2<BR>\n" );
document.write( "A=60º or &#960;/3 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );