[tex]\cfrac{(2^{-4})^{-4}}{2^4\times 2^2}\implies \cfrac{2^{-4\times -4}}{2^{4+2}}\implies \cfrac{2^{16}}{2^6}\implies 2^{16}\cdot 2^{-6}\implies 2^{16-6}\implies 2^{10}\implies 1024 \\\\[-0.35em] ~\dotfill\\\\ \cfrac{2}{4a^0\times a^1\times 4^2a^4}\implies \cfrac{2}{4(1)\times a^1\times 4^2a^4}\implies \cfrac{2}{4\times a^1\times 4^2a^4} \\\\\\ \cfrac{2}{a^1 a^4 4^1 4^2}\implies \cfrac{2}{a^{1+4}4^{1+3}}\implies \cfrac{2}{a^5 4^4}\implies \cfrac{2}{256a^5}\implies \cfrac{1}{128a^5}[/tex]
