document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=761442>Question 761442</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The solution(s) of the equation<BR>\n" );
document.write( "2cos^2 x tan x=tan x, over the interval [0,2&#960;) <BR>\n" );
document.write( "is (are)?   \r<BR>\n" );
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document.write( "Can you please explain to me how you got the answer?\r<BR>\n" );
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document.write( "(a) x=0<BR>\n" );
document.write( "(b)	&#119909;=0,&#120587;<BR>\n" );
document.write( "(c)	&#119909;=0,&#120587;4,3&#120587;4,&#120587;,5&#120587;4<BR>\n" );
document.write( "(d)	&#119909;=0,&#120587;4,3&#120587;4,&#120587;,5&#120587;4,7&#120587;4<BR>\n" );
document.write( "(e)	None of the above.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #463241 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=463241\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2cos^2xtanx = tanx<BR>\n" );
document.write( "2cos^2xtanx - tanx = 0<BR>\n" );
document.write( "tanx(2cos^2x - 1) = 0<BR>\n" );
document.write( "tanx = 0 <BR>\n" );
document.write( "   x = 0, pi, 2pi.<BR>\n" );
document.write( "2cos^x - 1 = 0<BR>\n" );
document.write( "  2cos^2x = 1<BR>\n" );
document.write( "   cos^2x = 1/2<BR>\n" );
document.write( "    cosx = 1/sqrt2<BR>\n" );
document.write( "  x = pi/4, 7pi/4\r<BR>\n" );
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document.write( "[0,pi/4,pi,7pi/4 and 2pi]<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
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