document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=769984>Question 769984</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve 1+cosx=sinx, for [0,2pi)<BR>\n" );
document.write( "I was told to square both sides, but got stuck at ,<BR>\n" );
document.write( "1+2cosx+cosx^2=sinx^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #469183 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=469183\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Q:<BR>\n" );
document.write( "solve 1+cosx=sinx, for [0,2pi)<BR>\n" );
document.write( "I was told to square both sides, but got stuck at ,<BR>\n" );
document.write( "1+2cosx+cosx^2=sinx^2<BR>\n" );
document.write( "------------------------------------------------------<BR>\n" );
document.write( "A:<BR>\n" );
document.write( "Use the identity <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%5E2%28x%29+%2B+sin%5E2%28x%29+=+1 ALIGN=MIDDLE  ALT=\"cos%5E2%28x%29+%2B+sin%5E2%28x%29+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" > OR <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%5E2%28x%29+=+1+-+cos%5E2%28x%29 ALIGN=MIDDLE  ALT=\"sin%5E2%28x%29+=+1+-+cos%5E2%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute the identity on the right side of the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2B2%2Acos%28x%29%2Bcos%5E2%28x%29=sin%5E2%28x%29 ALIGN=MIDDLE  ALT=\"1%2B2%2Acos%28x%29%2Bcos%5E2%28x%29=sin%5E2%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2B2%2Acos%28x%29%2Bcos%5E2%28x%29=1+-+cos%5E2%28x%29 ALIGN=MIDDLE  ALT=\"1%2B2%2Acos%28x%29%2Bcos%5E2%28x%29=1+-+cos%5E2%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Acos%5E2%28x%29+%2B+2%2Acos%28x%29=+0 ALIGN=MIDDLE  ALT=\"2%2Acos%5E2%28x%29+%2B+2%2Acos%28x%29=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%28x%29%29%2A%282%2Acos%28x%29+%2B+2%29=+0 ALIGN=MIDDLE  ALT=\"%28cos%28x%29%29%2A%282%2Acos%28x%29+%2B+2%29=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28x%29 ALIGN=MIDDLE  ALT=\"cos%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 0 OR <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Acos%28x%29+%2B+2 ALIGN=MIDDLE  ALT=\"2%2Acos%28x%29+%2B+2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 0<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28x%29 ALIGN=MIDDLE  ALT=\"cos%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 0 OR <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28x%29 ALIGN=MIDDLE  ALT=\"cos%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = -1<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28pi%2F2%29 ALIGN=MIDDLE  ALT=\"highlight%28pi%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  OR <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28pi%29 ALIGN=MIDDLE  ALT=\"highlight%28pi%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );