document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=867594>Question 867594</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve for t in the interval [0, 2pi)<BR>\n" );
document.write( "cos^2(t)-sin^2(t)=0<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 #523102 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=523102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve for t in the interval [0, 2pi)<BR>\n" );
document.write( "cos^2(t)-sin^2(t)=0<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "cos(2t) = 0<BR>\n" );
document.write( "2t = pi/2 or 2t = (3/2)t<BR>\n" );
document.write( "------<BR>\n" );
document.write( "t = pi/4 or t = (3/4)t<BR>\n" );
document.write( "===========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.==================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );