document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=191668>Question 191668</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need your help in how to solve the question\r<BR>\n" );
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document.write( "Solve over the interval [0,360]\r<BR>\n" );
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document.write( "sin 2x = cos 2x +1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #143792 by </B><A HREF=/tutors/aboutme.mpl?userid=J2R2R><B>J2R2R(94)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=J2R2R><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=J2R2R><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=143792\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sin 2x = Cos 2x + 1\r<BR>\n" );
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document.write( "2 Sin x Cos x = Cos 2x + 1\r<BR>\n" );
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document.write( "2 Sin x Cos x = Cos^2 x – Sin^2 x + Cos^2 x + Sin^2 x\r<BR>\n" );
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document.write( "2 Sin x Cos x = 2 Cos^2 x\r<BR>\n" );
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document.write( "Cancel out the 2 Cos x (giving solutions for Cos x = 0 are 90 and 270)\r<BR>\n" );
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document.write( "Sin x = Cos x gives solutions 45 and 225\r<BR>\n" );
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document.write( "Therefore the solutions are 45, 90, 225 and 270 degrees. </SPAN>\n" );
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