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Revisión de 15:10 7 may 2008
Δ = 8
<tex>
\displaystyle\int_{0}^{1}\frac{x^{4}\left(1-x\right)^{4}}{1+x^{2}}dx=
\frac{22}{7}-\pi
</tex>
<tex>\int</tex>
This is <ref name= "Hallo" > But this </ref>