document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=196083>Question 196083</A>: <I><SPAN STYLE=\"word-break: break-all;\"> use definitions of trig functions to prove the identity. \r<BR>\n" );
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document.write( "1+tan squared theta = sec squared theta </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146990 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=146990\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> use definitions of trig functions to prove the identity. <BR>\n" );
document.write( "1+tan squared theta = sec squared theta<BR>\n" );
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document.write( "Can I use that one?<BR>\n" );
document.write( "If not, multiply thru by cos^2<BR>\n" );
document.write( "cos^2 + sin^2 = 1.<BR>\n" );
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document.write( "The problem with these is knowing what identities are acceptable as already proven.<BR>\n" );
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