document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=293272>Question 293272</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to solve for X over interval {0, 2pi)<BR>\n" );
document.write( "4cos2x=sqrt3\r<BR>\n" );
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document.write( "I tried dividing out 4 but then am stuck with cos2x(which is an identity) = sqrt3/4.\r<BR>\n" );
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document.write( "Then im left with 2cos^2x - 1 = sqrt3/4.\r<BR>\n" );
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document.write( "Should I turn the cos2x into its identity before dividing out 4?\r<BR>\n" );
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document.write( "If anyone can help me get on track that would be great! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211730 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=211730\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I need to solve for X over interval {0, 2pi)<BR>\n" );
document.write( "4cos2x=sqrt3 <BR>\n" );
document.write( "---<BR>\n" );
document.write( "cos(2x) = (1/4)sqrt(3)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Take the arcos of each side to get:<BR>\n" );
document.write( "2x = arcos[(sqrt(3)/4]<BR>\n" );
document.write( "---<BR>\n" );
document.write( "2x = 64.34 degrees<BR>\n" );
document.write( "x = 32.17 degrees<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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