document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=678960>Question 678960</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I prove this?<BR>\n" );
document.write( "(cot &#952;+tan &#952;)/cot &#952;=sec^2 &#952;<BR>\n" );
document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #421710 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=421710\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28cot+%28theta%29%2Btan+%28theta%29%29%2Fcot+%28theta%29=sec%5E2+%28theta%29 ALIGN=MIDDLE  ALT=\"%28cot+%28theta%29%2Btan+%28theta%29%29%2Fcot+%28theta%29=sec%5E2+%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "start with left side and prove that is equal to right side\r<BR>\n" );
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document.write( "use identities:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%28theta%29=++sin%28theta%29%2Fcos%28theta%29 ALIGN=MIDDLE  ALT=\"tan%28theta%29=++sin%28theta%29%2Fcos%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >	 \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cot%28theta%29=+1%2Ftan%28theta%29=+cos%28theta%29%2Fsin%28theta%29 ALIGN=MIDDLE  ALT=\"cot%28theta%29=+1%2Ftan%28theta%29=+cos%28theta%29%2Fsin%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cot+%28theta%29%2Fcot%28theta%29%2Btan%28theta%29%2Fcot%28theta%29 ALIGN=MIDDLE  ALT=\"cot+%28theta%29%2Fcot%28theta%29%2Btan%28theta%29%2Fcot%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2B%28sin%28theta%29%2Fcos%28theta%29%29%2F%28cos%28theta%29%2Fsin%28theta%29%29 ALIGN=MIDDLE  ALT=\"1%2B%28sin%28theta%29%2Fcos%28theta%29%29%2F%28cos%28theta%29%2Fsin%28theta%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2B%28sin%28theta%29sin%28theta%29%29%2F%28cos%28theta%29cos%28theta%29%29 ALIGN=MIDDLE  ALT=\"1%2B%28sin%28theta%29sin%28theta%29%29%2F%28cos%28theta%29cos%28theta%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2B%28sin%5E2+%28theta%29%29%2F%28cos%5E2+%28theta%29+%29 ALIGN=MIDDLE  ALT=\"1%2B%28sin%5E2+%28theta%29%29%2F%28cos%5E2+%28theta%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2B%28sin%5E2+%28theta%29%29%2F%28cos%5E2%28theta%29+%29 ALIGN=MIDDLE  ALT=\"1%2B%28sin%5E2+%28theta%29%29%2F%28cos%5E2%28theta%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1+%2B+tan%5E2%28theta%29 ALIGN=MIDDLE  ALT=\"1+%2B+tan%5E2%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >........use identity  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1+%2B+tan%5E2%28theta%29=+sec%5E2%28theta%29 ALIGN=MIDDLE  ALT=\"1+%2B+tan%5E2%28theta%29=+sec%5E2%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sec%5E2%28theta%29 ALIGN=MIDDLE  ALT=\"sec%5E2%28theta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
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