document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=434537>Question 434537</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you please prove this identity\r<BR>\n" );
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document.write( "(sin x - tan x)(cos x - cot x)=(cos x -1)(sin x -1) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #301210 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=301210\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (sin x - tan x)(cos x - cot x)=(cos x -1)(sin x -1)<BR>\n" );
document.write( "start with left side<BR>\n" );
document.write( "(sinx-sinx/cosx)(cosx-cosx/sinx)<BR>\n" );
document.write( "((cosxsinx-sinx)/cosx)((cosxsinx-cosx)/sinx)<BR>\n" );
document.write( "(sinx(cosx-1)(cosx(sinx-1))/cosxsinx<BR>\n" );
document.write( "(cosx-1)(sinx-1)<BR>\n" );
document.write( "verified: left side=right side </SPAN>\n" );
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