document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=230149>Question 230149</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1/1-cos^2x=1+cot^2x please prove </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #170714 by </B><A HREF=/tutors/aboutme.mpl?userid=chibisan><B>chibisan(131)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chibisan><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=chibisan><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=170714\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/1-cos^2x=1+cot^2x \r<BR>\n" );
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document.write( "L.H.S<BR>\n" );
document.write( "1/1-cos^2x <BR>\n" );
document.write( "By using sin^2x+cos^2x=1<BR>\n" );
document.write( "1/sin^2x <BR>\n" );
document.write( "try to make cos^2x/sin^2x since it equals to cot^2x<BR>\n" );
document.write( "(1/(sin^2x)*(cos^2x/(cos^2x)<BR>\n" );
document.write( "(cos^2x/sin^2x)*(cos^2x)<BR>\n" );
document.write( "cot^2x+1 (proven)\r<BR>\n" );
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document.write( "there might be more easier way to prove it. </SPAN>\n" );
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