Problem

Evaluate: $3^{- 3} =$
A. -27
B. -9
C. $\frac{1}{9}$
D. $\frac{1}{27}$

Answer

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Hide Steps

Answer

$\frac{1}{3 \times 3 \times 3} = \frac{1}{27}$

Steps

Step 1 ： $3^{- 3} = \frac{1}{3^{3}}$

Step 2 ： $\frac{1}{3^{3}} = \frac{1}{3 \times 3 \times 3}$

Step 3 ： $\frac{1}{3 \times 3 \times 3} = \frac{1}{27}$

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