AMC 8 2022 Problem 8

AMC8 2022 年第 8

表达式与运算★★☆☆☆
What is the value of the expression shown below?
算式 · 4 · 5 ··· 20 · 21 · 22 ? · 4 · 5 ··· 20 · 21 · 22 的值是多少?
AMC 8 2022 Problem 8 figure
  1. A.1462\displaystyle \frac{1}{462}
  2. B.1231\displaystyle \frac{1}{231}
  3. C.1132\displaystyle \frac{1}{132}
  4. D.2213\displaystyle \frac{2}{213}
  5. E.122\displaystyle \frac{1}{22}

正确答案 · Correct Answer

B

解析 · Solution

解析整理中

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