document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=183063>Question 183063</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0534404693/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Find all solutions to the equation. Use a lower-case n to denote an arbitrary integer; separate your answers with commas; use the most compact expressions possible.\r<BR>\n" );
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document.write( "-4cos(4x) + 2 = 0\r<BR>\n" );
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document.write( "Any help is greatly appreciated!  I am really struggling just to get these problems started </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #137466 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=137466\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find all solutions to the equation. Use a lower-case n to denote an arbitrary integer; separate your answers with commas; use the most compact expressions possible. <BR>\n" );
document.write( "-4cos(4x) + 2 = 0 <BR>\n" );
document.write( "-4cos(4x) = -2<BR>\n" );
document.write( "cos(4x) = 1/2<BR>\n" );
document.write( "4x = 360n + 60, 360n + 300<BR>\n" );
document.write( "x = 90n + 15º, 90n + 75º (in degrees)<BR>\n" );
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document.write( "x = n*pi/2 + pi/12, n*pi/2 + 5pi/12 radians<BR>\n" );
document.write( "x = pi(6n+1)/12, pi(6n+5)/12 radians </SPAN>\n" );
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