document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=822875>Question 822875</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello. I am having difficulty with this question and I would ask for your help. <BR>\n" );
document.write( "Solve the following trig equations on the given intervals<BR>\n" );
document.write( "cosx / (1+sinx) - (1-sinx)/cosx = 2       and the interval is    pi < x < 3pi<BR>\n" );
document.write( "Thank you for your time.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #495167 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=495167\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the following trig equations on the given intervals<BR>\n" );
document.write( "cosx / (1+sinx) - (1-sinx)/cosx = 2 and the interval is pi < x < 3pi<BR>\n" );
document.write( "***<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28x%29%2F%281%2Bsin%28x%29%29-%281-sin%28x%29%29%2Fcos%28x%29=2 ALIGN=MIDDLE  ALT=\"cos%28x%29%2F%281%2Bsin%28x%29%29-%281-sin%28x%29%29%2Fcos%28x%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%5E2%28x%29-%281-sin%5E2%28x%29%29%29%2Fcos%28x%29%281%2Bsin%28x%29%29=2 ALIGN=MIDDLE  ALT=\"%28cos%5E2%28x%29-%281-sin%5E2%28x%29%29%29%2Fcos%28x%29%281%2Bsin%28x%29%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos%5E2%28x%29-cos%5E2%28x%29%29%2Fcos%28x%29%281%2Bsin%28x%29%29=2 ALIGN=MIDDLE  ALT=\"%28cos%5E2%28x%29-cos%5E2%28x%29%29%2Fcos%28x%29%281%2Bsin%28x%29%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2cos%28x%29%281%2Bsin%28x%29%29=0 ALIGN=MIDDLE  ALT=\"2cos%28x%29%281%2Bsin%28x%29%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "2cos(x)=0<BR>\n" );
document.write( "x=&#960;/2,3&#960;/2,5&#960;/2<BR>\n" );
document.write( "or<BR>\n" );
document.write( "1+sin(x)=0<BR>\n" );
document.write( "sin(x)=-1<BR>\n" );
document.write( "x=3&#960;/2<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );