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Mathematics for IGCSE & O level - Indices 1 (Section 1 - No. 36)
Simplify: a
-2
/ a
-5
a
-7
a
3
a
7
1/a
3
Explanation
When dividing indices with the same base, subtract the powers: a
-2
/ a
-5
= a
-2 - (-5)
= a
3
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