document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=596068>Question 596068</A>: <I><SPAN STYLE=\"word-break: break-all;\"> verify the identity algebraically, \r<BR>\n" );
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document.write( "cos x/sin x +1 minus cos x/sin x-1 =2sec x\r<BR>\n" );
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document.write( "these problems just make no sense at all  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #377485 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=377485\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> verify the identity algebraically, \r<BR>\n" );
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document.write( "cos x/sin x +1 minus cos x/sin x-1 =2sec x<BR>\n" );
document.write( "these problems just make no sense at all<BR>\n" );
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document.write( "And those problems about people's ages do?<BR>\n" );
document.write( "Don't people know how old they are?<BR>\n" );
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document.write( "The idea is to prove that the statement is true, or to disprove it.<BR>\n" );
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document.write( "I think you mean:<BR>\n" );
document.write( "cos x/(sin x +1) - cos x/(sin x-1) =2sec x<BR>\n" );
document.write( "Get rid of fractions<BR>\n" );
document.write( "cos*(sin - 1) - cos*(sin + 1) = 2sec<BR>\n" );
document.write( "cos*sin - cos - cos*sin - cos = 2sec<BR>\n" );
document.write( "-2cos = 2sec<BR>\n" );
document.write( "That's not true, not an identity.<BR>\n" );
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