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The reciprocal of (2/5)-1 is:(a) 2/5 (b) 5/2 (c) –5/2 (d) –2/5 |
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Answer» (b) 5/2 Explanation: By the law of exponent we know: a-n = 1/an. Hence, (2/5)-1 = 1/(2/5) = 5/2 |
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