(5/9)^-5 × (9/5)^-3
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2
Answer:
81/25
Step-by-step explanation:
(5/9)^-5 × (9/5)^-3
= (5/9)^-5 × (5/9)^3
= (5/9)^[-5+3]
= (5/9)^-2
= (9/5)^2
= 81/25
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