$\left[-4^{3}\right]^{-7}$
\boxed{-2.2737367544323206 \times 10^{-13}}\)
Step 1 :\(-4^3 = -64\)
Step 2 :\left[-4^{3}\right]^{-7} = (-64)^{-7}\)
Step 3 :\boxed{-2.2737367544323206 \times 10^{-13}}\)