document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=843228>Question 843228</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Verify the trig identity by changing one side to match the other.\r<BR>\n" );
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document.write( "(1+cos(-x)/1-cos(x)) - (1-cos(-x)/1+cos(x))= 4cot(x) csc(x)\r<BR>\n" );
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document.write( "Please and thank you! I've been trying to work this problem for 30mins now. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #508011 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=508011\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Substitute cot x with cos x/sin x, csc x with 1/sin x, and cos(-x) with cos x and the identity should follow. </SPAN>\n" );
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