计算化简:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb737f7ebd3ffb8bfe68c3e422fe180.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971c1929220e2916b708618c1248ad76.png)
更新时间:2020-07-13 19:02:37
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解答题-计算题
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【推荐1】计算:|
|﹣(π﹣3.14)0+tan60°+(
)﹣2+(﹣1)2019
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5246364ca8d76ddd707a001fe98cbb5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
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【推荐1】若
(
且
,
是正整数),则
.利用上面结论解决下面的问题:
(1)如果
,则
_______;
(2)如果
,求
的值;
(3)如果
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113295f63c75866fcba144af609b8f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0877194ab8760f54c35527177b03ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a4480988244a9d04ec293975db2cc0.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8149d84d28f0a2bbe6c74b40d75ee711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6efe9b06a294d01c0cf8da532eb5e8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fbe02401c61a8ed9c75caf4736d9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解答题-计算题
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【推荐3】如果10b=n,那么b为n的“劳格数”,记为b=d(n).由定义可知:10b=n与b=d(n)表示b、n两个量之间的同一关系.
(1)根据“劳格数”的定义,填空:d(10)=__________,d(10﹣2)=__________.
(2)“劳格数”有如下运算性质:
若m、n为正数,则d(mn)=d(m)+d(n),d(
)=d(m)﹣d(n);根据运算性质,填空:
=________,(a为正数)
(3)若d(2)=0.3010,分别计算d(4);d(5);d(0.08).
(1)根据“劳格数”的定义,填空:d(10)=__________,d(10﹣2)=__________.
(2)“劳格数”有如下运算性质:
若m、n为正数,则d(mn)=d(m)+d(n),d(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0be44077d42cfffece905b1af13e000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c76a9916200cfee94d6c69b67b985e.png)
(3)若d(2)=0.3010,分别计算d(4);d(5);d(0.08).
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