document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=415509>Question 415509</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Obtain the derivative of X tanX using definition </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #291331 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=291331\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> By the product rule,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28d%2Fdx%29%28x%2Atan%28x%29%29+=+%28%28d%2Fdx%29x%29%28tan%28x%29%29+%2B+x%2A%28d%2Fdx%29%28tan%28x%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28d%2Fdx%29%28x%2Atan%28x%29%29+=+tan%28x%29+%2B+x%28sec%5E2%28x%29%29 ALIGN=MIDDLE  ALT=\"%28d%2Fdx%29%28x%2Atan%28x%29%29+=+tan%28x%29+%2B+x%28sec%5E2%28x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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