2018 AMC 8 第 2 题
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所有题目均经美国数学协会（MAA）官方合法授权使用。
2.
下列乘积的值是多少？
What is the value of the product
小提示：
把每个因子 改写成
Rewrite each factor as .
大提示：
改写后相邻分子和分母会相消
The product telescopes after the fractions are rewritten.
视频讲解：
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文字解答：
先注意，形如 的因子可以改写为 因此题中的乘积可以写成 所以正确答案是 D。
Let’s first note that if we are given an expression of the form we can rewrite this as With that in mind, we can rewrite the expression given to us in the problem, as shown below: Thus, the correct answer is D.
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