document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1121834>Question 1121834</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the eq on the interval [0,2pi) :  sin2x-cosx=0\r<BR>\n" );
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document.write( "I used the indetity sin2x = 2sinxcosx\r<BR>\n" );
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document.write( "So 2sinxcosx-cosx=0<BR>\n" );
document.write( "Cosx(2sinx-1) = 0\r<BR>\n" );
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document.write( "Thus cosx=0 and 2sinx-1=0\r<BR>\n" );
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document.write( "Simplified im left with these to evaluate<BR>\n" );
document.write( "Where is cosx = 0 and where is sinx= -1/2\r<BR>\n" );
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document.write( "Cosx = 0 at 3pi/2 and pi/2<BR>\n" );
document.write( "Sinx = -1/2 at 7pi/ and 11pi/6\r<BR>\n" );
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document.write( "Would those be my values? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #737820 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=737820\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \text{Almost.  If } 2\sin(x)\ -\ 1\ =\ 0\ \text{ then } 2\sin(x)\ =\ 1\text{ and } \sin(x)\ =\ \frac{1}{2}\text{, not } -\frac{1}{2}.\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \text{Hence, }x\ \in\ \{\frac{\pi}{6},\,\frac{\pi}{2},\,\frac{5\pi}{6},\,\frac{3\pi}{2}\}\"><BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \ \\r\"> </SPAN>\n" );
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