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(-5/7)-5 is equal to:(a) (5/7)-5 (b) (5/7)5 (c) (7/5)5 (d) (-7/5)5 |
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Answer» (d) (-7/5)5 Explanation: (-5/7)-5 = 1/(-5/7)5 = (-7/5)5 (By the law of exponents: a-n = 1/an) |
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