document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=877877>Question 877877</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question 1. 2cosx^4 -3cosx^2 +1=0\r<BR>\n" );
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document.write( "Question 2. 4sinx^4 +3sinx^2 -1=0\r<BR>\n" );
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document.write( "Question 3. Cos3x= (sqrt(3)/2)\r<BR>\n" );
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document.write( "Question 4. 2cosx^2 -2sinx^2=1\r<BR>\n" );
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document.write( "Question 5. 2sinxcosx=1\r<BR>\n" );
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document.write( "Please, solve all the five equations above, and I require the answer in between 0 degrees and 360 degrees [0,360]. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #529593 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=529593\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Question 1. 2cosx^4 -3cosx^2 +1=0<BR>\n" );
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document.write( "(2cos^2 - 1)*(cos^2 - 1) = 0<BR>\n" );
document.write( "cos^2 = 1/2, etc<BR>\n" );
document.write( "cos^2 = 1, etc<BR>\n" );
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document.write( "#2 is similar<BR>\n" );
document.write( "#3 is easy<BR>\n" );
document.write( "#4 is similar<BR>\n" );
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document.write( "Question 5. 2sinxcosx=1<BR>\n" );
document.write( "sin(2x) = 1<BR>\n" );
document.write( "2x = 90 degs<BR>\n" );
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