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Frage: $a^3 \cdot b^3 \cdot 2^3 \cdot (\frac{1}{b})^3 = ?$ \newline

\begin{tabular}{c c c c}
a) & b) & c) & d) \\
$(2a)^3$ & $(2ab)^{12}$ & $(2ab^2)^3$ & $(2ab)^3$ \\
\end{tabular}
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