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Quantity A
$$(x+\frac{1}{x})^{-3}$$
Quantity B
$$x^{-3}$$ + $$(\frac{1}{x})^{-3}$$
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A.Quantity A is greater.
.
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B.Quantity B is greater.
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C.The two quantities are equal.
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D.The relationship cannot be determined from the information given.
D显示答案