\( \DeclareMathOperator{\abs}{abs} \newcommand{\ensuremath}[1]{\mbox{$#1$}} \)
(%i1) integrate(sin(xsin(x),x,%pi, %pi);
\[\tag{%o1} \ensuremath{\pi} \]
(%i10) integrate(sin(xsin(x),x,%pi, %pi);
\[\tag{%o10} -\ensuremath{\pi} \]
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