Easy
Which expression is equivalent to 4−34−1\frac{4^{-3}}{4^{-1}}4−14−3 ?
142\frac{1}{4^{2}}421
4642\frac{4^{6}}{4^{2}}4246
43⋅414^{3} \cdot 4^{1}43⋅41
4−34^{-3}4−3
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