document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1029854>Question 1029854</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with this problem:<BR>\n" );
document.write( "Let R be the region bounded by the x axis and the graph of y = tan x on the closed interval [0, pi/4]. Use the \"disk method\" to find the volume of the solid formed when R is revolved about the x axis. Evaluate the integral. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #644789 by </B><A HREF=/tutors/aboutme.mpl?userid=Natolino1983><B>Natolino1983(23)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Natolino1983><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=644789\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> V=PI×INTREGAL FROM 0 to PI/4 (tg^2(x)dx).\r<BR>\n" );
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document.write( " Tg^2(x) = 1 - sec^2(x).\r<BR>\n" );
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document.write( "So the anti-derivative= x - tg(x).\r<BR>\n" );
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document.write( "So V = PI×( PI/4 -tg(pi/4) - (0 - tg(0)) =(Pi^2 -4×Pi)/4 cubic units. </SPAN>\n" );
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