document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=963240>Question 963240</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the solutions of the given equation in the indicated interval. (Give your answers to two decimal places. Enter your answers as a comma-separated list.)<BR>\n" );
document.write( "20 (cos(x))^2 + cos(x) &#8722; 1 = 0,      [0, &#960;]<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #588491 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=588491\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the solutions of the given equation in the indicated interval. (Give your answers to two decimal places. Enter your answers as a comma-separated list.)<BR>\n" );
document.write( "20 (cos(x))^2 + cos(x) &#8722; 1 = 0, [0, &#960;]<BR>\n" );
document.write( "20cos^2(x)+cosx-1=0<BR>\n" );
document.write( "(5cosx-1)(4cosx+1)=0<BR>\n" );
document.write( "..<BR>\n" );
document.write( "5cosx-1=0<BR>\n" );
document.write( "cosx=1/5<BR>\n" );
document.write( "x=1.77<BR>\n" );
document.write( "or<BR>\n" );
document.write( "4cosx+1=0<BR>\n" );
document.write( "cos x=-1/4<BR>\n" );
document.write( "x=1.82<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );