document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1028764>Question 1028764</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Please help me solve this problem: find all solutions 3 cos(pi/5)x=2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643840 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=643840\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3 cos(pi/5)x=2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "cos[(pi/5)x] = 2/3<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "(pi/5)x = arccos(2/3)<BR>\n" );
document.write( "pi/5 x = 0.8411<BR>\n" );
document.write( "x = 0.8411(5/pi) = 1.54 radians = 88.64 degrees<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );