document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1128175>Question 1128175</A>: <I><SPAN STYLE=\"word-break: break-all;\"> prove (1/1+cosx)+(1/1-cosx)=2csc^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #744661 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=744661\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1/1+cosx)+(1/1-cosx)=2csc^2=2/sin^2 x=2/(1-cos^2x)<BR>\n" );
document.write( "common denominator on left is (1+cos x)(1-cos x) which is 1-cos^2 x\r<BR>\n" );
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document.write( "the numerator will become 1-cos x+1+cos x or 2<BR>\n" );
document.write( "and the left side becomes 2/(1- cos^2 x) </SPAN>\n" );
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