document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1053349>Question 1053349</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove That:\r<BR>\n" );
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document.write( "(tan^2 A + 1)Cos2A= 2-Sec^2A </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #837903 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=837903\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "(tan^2 A + 1)Cos2A= 2-Sec^2A\r<BR>\n" );
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document.write( "(tan^2A+1)(cos^2A-sin^2A)\r<BR>\n" );
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document.write( "sec^2A *(cos^2A-(1-cos^2A)\r<BR>\n" );
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document.write( "sec^2A *(cos^2A-1+cos^2A)\r<BR>\n" );
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document.write( "1/cos^2A *2cos^2A -1/cos^2A\r<BR>\n" );
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document.write( "=2-sec^2A\r<BR>\n" );
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document.write( " </SPAN>\n" );
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