document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=231659>Question 231659</A>: <I><SPAN STYLE=\"word-break: break-all;\"> every time i try this problem: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dy%2Fdx ALIGN=MIDDLE  ALT=\"dy%2Fdx\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4%2Fcos%28x%29 ALIGN=MIDDLE  ALT=\"+4%2Fcos%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > my answer is undefined </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #171394 by </B><A HREF=/tutors/aboutme.mpl?userid=kensson><B>kensson(21)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=kensson><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=kensson><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=171394\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can use the chain rule.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+%28cos+x%29%5E%28-1%29 ALIGN=MIDDLE  ALT=\"4+%28cos+x%29%5E%28-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > differentiates to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+%28sin+x%29+%28cos+x%29%5E%28-2%29+=+4+tan+x+sec+x ALIGN=MIDDLE  ALT=\"4+%28sin+x%29+%28cos+x%29%5E%28-2%29+=+4+tan+x+sec+x\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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