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'2017/03/02'에 해당되는 글 1건
Problems and Solutions #023
Problem #023 $n$이 양의 정수라 하자. 만약 $2^n$이 $k$ 자리의 정수이면, $5^n$은 몇 자리의 정수일까? 우선 $2^n$이 $k$ 자리의 정수이므로,\[ 10^{k-1}
Others/Middle School Math
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2017. 3. 2. 13:35
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