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11. Raising a fraction in a degree (negative denominator)

Raise a fraction

{(\frac{r^{3}}{- 3})}^{4}

to the extent.

Choose the correct answer(s):

$\frac{r^{12}}{81}$
$\frac{1}{81} r^{12}$
$- \frac{r^{12}}{3}$
$\frac{r^{12}}{3}$

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