document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=196245>Question 196245</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the equation sin? + 2cos? - 2 = 0 for 0 = ? = 2&#960;.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #147273 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=147273\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the equation sin? + 2cos? - 2 = 0 for 0 = ? = 2&#960;. <BR>\n" );
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document.write( "sin = 2 - 2cos<BR>\n" );
document.write( "sqrt(1-cos^2) = 2 - 2cos<BR>\n" );
document.write( "1-cos^2 = 4 - 8cos + 4cos^2<BR>\n" );
document.write( "5cos^2 - 8cos + 3 = 0<BR>\n" );
document.write( "cos = -0.8 ± 0.2<BR>\n" );
document.write( "cos = -1, -0.6<BR>\n" );
document.write( "Angle = 180º, 126.87º, 233.13º<BR>\n" );
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