Question

please solve this one​

Answer 1

1st solve common bracket
[{4/9}^-1]^-3
[9/4]^-3
[4/9]^3
64/729

Answer 2

SOLUTION

$(( { { { \frac{2}{3} }^{2}) }^{ - 1}) }^{ - 3} \\ \\ { \frac{2}{3} }^{2 \times ( - 1) \times ( - 3)} \\ \\ { \frac{2}{3} }^{6} \\ \\ \frac{64}{729}$