document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=605372>Question 605372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me identify this identity:\r<BR>\n" );
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document.write( "cos ^2 theta(tan^2 theta+1)+cot^2 theta= csc^2theta </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #381667 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=381667\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> please help me identify this identity: <BR>\n" );
document.write( "cos ^2 theta(tan^2 theta+1)+cot^2 theta= csc^2theta<BR>\n" );
document.write( "----<BR>\n" );
document.write( "cos^2*(tan^2 + 1) + cot^2 = csc^2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Work on the left side:<BR>\n" );
document.write( "sin^2 + cos^2 + cot^2 = csc^2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "1 + cot^2 = csc^2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "That is one of Pythagorean identities:<BR>\n" );
document.write( "csc^2(theta) = csc^2(theta)<BR>\n" );
document.write( "================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );