2000 AMC 8 第 2 题
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2.
下列哪个数小于它的倒数？
Which of these numbers is less than its reciprocal?
答案：A
小提示：
检查 是否有倒数。
Check whether has a reciprocal
大提示：
比较 和 。
Compare with
解答：
没有倒数， 和 的倒数都是它们本身。
的倒数是 ，但 不小于 。
因为 ，所以 是唯一小于其倒数的选项。
所以正确答案是 A。
has no reciprocal, and and are their own reciprocals.
The reciprocal of is but is not less than
Therefore, as we know that is the only one of the answer choices that is less than its reciprocal.
Thus, A is the correct answer.
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