数学运算是指在明晰运算对象的基础上,依据运算法则解决数学问题的素养.因为运算,数的威力无穷;没有运算,数就只是一个符号.对数运算与指数运算是两类重要的运算.对数的运算性质降低了运算的级别,简化了运算,在数学发展史上是伟大的成就.一个自然数数位的个数,叫做位数.例如:26=64,所以26的位数是2;
,所以210的位数是4.
(1)试判断220和2100的位数,并说明理由;
(2)若3n(nN*)的位数是100,试求出n的所有可能取值.
(本题参考数据:lg2≈0.3010,lg3≈0.4771)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/debc5f7846c70bdfb5911af22b83558f.png)
(1)试判断220和2100的位数,并说明理由;
(2)若3n(nN*)的位数是100,试求出n的所有可能取值.
(本题参考数据:lg2≈0.3010,lg3≈0.4771)
21-22高一上·江苏南京·阶段练习 查看更多[3]
江苏省南京市六校2021-2022学年高一上学期12月联考数学试题(已下线)第三章 幂、指数与对数(压轴题专练)-速记·巧练(沪教版2020必修第一册)江苏省泰州市兴化市楚水实验学校2023-2024学年高一上学期期末适应性考试数学试题
更新时间:2021-12-22 17:21:32
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