document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=315533>Question 315533</A>: <I><SPAN STYLE=\"word-break: break-all;\"> sin &#1138;/1-cos&#1138; – 1+cos&#1138;/sin &#1138; = 0<BR>\n" );
document.write( "I need to prove the equation is true using identities, operations, definitions, etc.  I know I need to find a common denominator which I believe is 1-cos&#1138; sin &#1138;<BR>\n" );
document.write( "I'm just not sure after that. I'd appreciate any help I can get.  Thank you, Cathy </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #225741 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=225741\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  sin &#1138;/(1-cos&#1138;) – (1+cos&#1138;)/sin &#1138; = 0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by sin(1-cos) to get:<BR>\n" );
document.write( "sin^2 - (1+cos)(1-cos) = 0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "sin^2 - (1-cos^2) = 0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "sin^2 - sin^2 = 0<BR>\n" );
document.write( "0 = 0<BR>\n" );
document.write( "========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );