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Mathematics for IGCSE & O level - Indices 2 (Section 3 - No. 8)
Which expression is equivalent to (2^{-3})?
-8
( rac{1}{8})
6
(- rac{1}{8})
解释
A negative exponent indicates the reciprocal: (2^{-3} = rac{1}{2^3} = rac{1}{8}).
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