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Mathematics for IGCSE & O level - Indices 1 (Section 1 - No. 8)
Which expression is equal to 1/3
2
?
3
-2
3
-1
3
1
3
6
Uitleg
A negative exponent indicates a reciprocal: 1/a
n
= a
-n
. Therefore 1/3
2
= 3
-2
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