asksign: integrate(sin(x)/(cos(x))^2,x,%pi/6, %pi/4)

• Subject: asksign: integrate(sin(x)/(cos(x))^2,x,%pi/6, %pi/4)
• From: Mike Hansen
• Date: Fri, 26 Jun 2009 14:37:15 -0700

Hello,

With Maxima 5.18.1, I get the following behavior:

Maxima 5.18.1 http://maxima.sourceforge.net
Using Lisp ECL 9.4.1
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) integrate(sin(x)/(cos(x))^2,x);
                                      1
(%o1)                               ------
                                    cos(x)
(%i2) integrate(cos(x)/(sin(x))^2,x,%pi/6,%pi/4);
Is  sin(x)  positive, negative, or zero?


--Mike

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