document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=532829>Question 532829</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following equation in the interval [0, 2 pi]. <BR>\n" );
document.write( "Note: Give the answer as a multiple of pi. Do not use decimal numbers. The answer should be a fraction or an integer. Note that pi is already included in the answer so you just have to enter the appropriate multiple. E.g. if the answer is  you should enter 1/2. If there is more than one answer enter them separated by commas. \r<BR>\n" );
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document.write( "2(cos(t))**2 - cos(t)-1=0\r<BR>\n" );
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document.write( "2 (sin(t))**2 - sin(t) -1=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #350918 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=350918\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the following equation in the interval [0, 2 pi]. <BR>\n" );
document.write( "Note: Give the answer as a multiple of pi. Do not use decimal numbers. The answer should be a fraction or an integer. Note that pi is already included in the answer so you just have to enter the appropriate multiple. E.g. if the answer is you should enter 1/2. If there is more than one answer enter them separated by commas. <BR>\n" );
document.write( "2(cos(t))**2 - cos(t)-1=0<BR>\n" );
document.write( "Factor:<BR>\n" );
document.write( "(2cos+1)(cos-1) = 0<BR>\n" );
document.write( "cos(t) = -1/2 or cos(t) = 1<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "t + (5/6)pi or ((7/6)pi or 0<BR>\n" );
document.write( "==============================<BR>\n" );
document.write( " <BR>\n" );
document.write( "2 (sin(t))**2 - sin(t) -1=0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Use the same process as above.<BR>\n" );
document.write( "=================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "==============<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );