Problem
(3) Evaluate: \( 4^{-3} \) (A) 64 (B) -64 (C) -12 (D) \( \frac{1}{64} \)
Solution
Step 1 ：\( 4^{-3} = \frac{1}{4^3} \)
Step 2 ：\( \frac{1}{4^3} = \frac{1}{4 \times 4 \times 4} \)
Step 3 ：\( \frac{1}{4 \times 4 \times 4} = \frac{1}{64} \)
