document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=269122>Question 269122</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I was hoping someone could help me with these:)<BR>\n" );
document.write( "VERIFY:<BR>\n" );
document.write( "a)secx(cosx+cos^3xcsc^2x)=csc^2x<BR>\n" );
document.write( "b)secx(sinx+sinxsecx)=1+secx<BR>\n" );
document.write( "c)tanx(cscx+cotxcscx)=secx+cscx </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #197261 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=197261\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> VERIFY:<BR>\n" );
document.write( "a)secx(cosx+cos^3xcsc^2x)=csc^2x<BR>\n" );
document.write( "1 + cos^2(x)csc^2(x) = csc^2(x)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "1  = csc^2(x)-cos^2(x)csc^2(x)<BR>\n" );
document.write( "1 = csc^2(x)(1 - cos^2(x))<BR>\n" );
document.write( "1 = csc^2(x)(sin^2(x))<BR>\n" );
document.write( "1 = 1<BR>\n" );
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document.write( "b)secx(sinx+sinxsecx)=1+secx<BR>\n" );
document.write( "(tan(x) + tan(x)sec(x) = 1 + sec(x)<BR>\n" );
document.write( "tan(x)(1 + sec(x)) = 1 + sec(x)<BR>\n" );
document.write( "Not an identity<BR>\n" );
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document.write( "c)tanx(cscx+cotxcscx)=secx+cscx<BR>\n" );
document.write( "sec(x) + (1)(sec(x)) = sec(x) + csc(x)<BR>\n" );
document.write( "2 sec(x) = sec(x) + csc(x)<BR>\n" );
document.write( "Not an identiy<BR>\n" );
document.write( "===========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );