document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1076620>Question 1076620</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Verify the identity.\r<BR>\n" );
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document.write( "(1/cosx+1) + (1/cosx-1) = -2cscx cot x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #691262 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=691262\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Verify the identity. <BR>\n" );
document.write( "(1/cosx+1) + (1/cosx-1) = -2cscx cot x<BR>\n" );
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document.write( "Multiply thru by cos^2(x)-1 to get:<BR>\n" );
document.write( "Note:: cos^2(x)-1 = -sin^2(x)<BR>\n" );
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document.write( "cos(x)-1 + cos(x)+1 = (-sin^2(x))(-2csc(x)cot(x))<BR>\n" );
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document.write( "2cos(x) = 2*sin(x)cos(x)<BR>\n" );
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document.write( "Ans:: Not an identity<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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