False
The shown process for simplifying the expression \((\frac{3}{4})^{-3}\) is incorrect. The correct approach is to rewrite the negative exponent as follows:
\[ (\frac{3}{4})^{-3} = (\frac{4}{3})^{3} = \frac{4^3}{3^3} = \frac{64}{27} \]
Thus, the final answer is \(\frac{64}{27}\), not \(\frac{27}{256}\).