document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1104642>Question 1104642</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find all solutions in the interval [0, 2&#960;).\r<BR>\n" );
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document.write( "cos^2(x) + 2 cos x + 1 = 0\r<BR>\n" );
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document.write( "Find all solutions in the interval [0, 2&#960;). \r<BR>\n" );
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document.write( "(sin x)(cos x) = 0\r<BR>\n" );
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document.write( "Find all solutions to the equation.\r<BR>\n" );
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document.write( "cos^2(x) + 2 cos 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 #719382 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719382\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find all solutions in the interval [0, 2&#960;).\r<BR>\n" );
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document.write( "cos^2(x) + 2 cos x + 1 = 0<BR>\n" );
document.write( "(cos(x) + 1)^2 = 0<BR>\n" );
document.write( "cos(x) = -1<BR>\n" );
document.write( "x = pi radians<BR>\n" );
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document.write( "Find all solutions in the interval [0, 2&#960;). \r<BR>\n" );
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document.write( "(sin x)(cos x) = 0<BR>\n" );
document.write( "sin(x) = 0<BR>\n" );
document.write( "x = 0, pi<BR>\n" );
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document.write( "cos(x) = 0<BR>\n" );
document.write( "x = pi/2, 3pi/2\r<BR>\n" );
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document.write( " </SPAN>\n" );
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