1.

\[{{\left( \frac{1}{3} \right)}^{7}}\div {{\left( \frac{-1}{3} \right)}^{4}}\]is equal to

A.  \[{{\left( \frac{1}{3} \right)}^{11}}\]          
B.  \[{{\left( \frac{1}{3} \right)}^{3}}\]
C.  \[{{\left( \frac{1}{3} \right)}^{-3}}\]
D.  \[1\]
Answer» C.  \[{{\left( \frac{1}{3} \right)}^{-3}}\]


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