Question:
Mark $(\sqrt{ })$ against the correct answer in the following:
$\int_{-1}^{-2} x^{3}\left(1-x^{2}\right) d x=?$
A. $-\frac{40}{3}$
B. $\frac{40}{3}$
C. $\frac{5}{6}$
D. 0
Solution:
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