document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=756390>Question 756390</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the solution set of all angles in [0,2pi)\r<BR>\n" );
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document.write( "4 cos^2x-3=0\r<BR>\n" );
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document.write( "5 sec^2x-20=0\r<BR>\n" );
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document.write( "2 cos^2 x-sin x-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 #460173 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=460173\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the solution set of all angles in [0,2pi) <BR>\n" );
document.write( "4 cos^2x-3=0<BR>\n" );
document.write( "cos^2(x) = 3/4<BR>\n" );
document.write( "cos(x) = sqrt(3)/2<BR>\n" );
document.write( "x = pi/3 or x = (5/6)pi<BR>\n" );
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document.write( "5 sec^2x-20=0<BR>\n" );
document.write( "sec^2(x) = 4<BR>\n" );
document.write( "sec(x) = +2 or -2<BR>\n" );
document.write( "x = pi/6 or (11/6)pi or (5/6)pi or (7/6)pi<BR>\n" );
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document.write( "2 cos^2 x-sin x-1=0<BR>\n" );
document.write( "2(1-sin^2(x)) - sin(x) - 1 = 0<BR>\n" );
document.write( "-2sin^2(x) - sin(x) + 1 = 0<BR>\n" );
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document.write( "2sin^2(x) + sin(x) - 1 = 0<BR>\n" );
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document.write( "(2sin(x)-1)(sin(x)+1) = 0<BR>\n" );
document.write( "sin(x) = 1/2 or sin(x) = -1<BR>\n" );
document.write( "x = pi/6 or (5/6)pi or (3/2)pi<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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