document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1048627>Question 1048627</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine the value of \r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=int%28%28cos2x-1%29%2F%28cos2x%2B1%29%2C+dx%2C+0%2Cpi%2F4%29 ALIGN=MIDDLE  ALT=\"int%28%28cos2x-1%29%2F%28cos2x%2B1%29%2C+dx%2C+0%2Cpi%2F4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Please include complete steps. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #664343 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=664343\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=int%28%28cos2x-1%29%2F%28cos2x%2B1%29%2C+dx%2C+0%2Cpi%2F4%29 ALIGN=MIDDLE  ALT=\"int%28%28cos2x-1%29%2F%28cos2x%2B1%29%2C+dx%2C+0%2Cpi%2F4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cos2x-1%29%2F%28cos2x%2B1%29+=+%28cos%5E2%28x%29+-+sin%5E2%28x%29-+sin%5E2%28x%29+-+cos%5E2%28x%29%29%2F%28cos%5E2%28x%29+-+sin%5E2%28x%29%2B+sin%5E2%28x%29%2Bcos%5E2%28x%29%29+=+%28-2sin%5E2%28x%29%29%2F%282cos%5E2%28x%29%29+=+-tan%5E2%28x%29+=+1-sec%5E2%28x%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "===> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=int%28%28cos2x-1%29%2F%28cos2x%2B1%29%2C+dx%2C+0%2Cpi%2F4%29+=+int%28%281-sec%5E2%28x%29%29%2C+dx%2C+0%2Cpi%2F4%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x+-+tanx%29%5B0%5D%5E%28pi%2F4%29+=+pi%2F4+-+tan%28pi%2F4%29+-+0+%2B+tan0+=+highlight%28pi%2F4+-+1%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );