I see the set of math questions you've uploaded. Let's go through and solve them step by step.

11. Diketahui $x = -2$, $y = 2$, dan $z = 3$, maka hasil dari $(xy^3)^2 \cdot \left( \frac{yz^{-1}}{z^2} \right)^{-3}$ adalah:

Solution:

1. $(xy^3)^2 = (-2 \cdot 2^3)^2 = (-2 \cdot 8)^2 = (-16)^2 = 256$.
2. Simplify $\frac{yz^{-1}}{z^2} = \frac{2 \cdot 3^{-1}}{3^2} = \frac{2 \cdot \frac{1}{3}}{9} = \frac{2}{27}$.
3. Raise it to the power of $-3$: $\left( \frac{2}{27} \right)^{-3} = \frac{27^3}{2^3} = \frac{19683}{8}$.
4. Multiply $256 \cdot \frac{19683}{8} = \frac{256 \cdot 19683}{8} = 629856 \div 8 = 78732$.
5. Answer: $78732$.

Thus, none of the choices match the expected result. Would you like to clarify the steps?

Let me solve the next question.