document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=405656>Question 405656</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do i prove this trig identity? (sinX/(cosX+1))+((cosX-1)/sinX)=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #286484 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=286484\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how do i prove this trig identity? <BR>\n" );
document.write( "(sinX/(cosX+1))+((cosX-1)/sinX)=0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by sin(cos+1) to get:<BR>\n" );
document.write( "---<BR>\n" );
document.write( "sin^2 + (cos-1)(cos+1) = 0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "sin^2 + cos^2-1 = 0<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" );