1 . 人们发现,可以通过公式
来求方程
(
均为正实数)的正实数根.例如,方程
的正实数根为
,我们知道
是
的唯一正实数根,所以
,这里规定
.根据以上材料可得
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d63ca557a72dca6d8e6fd1292cc938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bd63762e6bc365c2fa3f9c2387e46c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad71356dc416a3d67dd0287fe1d08c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b863de54fe9b9d5191d23ff8e23ac42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad71356dc416a3d67dd0287fe1d08c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd779c16bcc1a432eee1bb797faea3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d70c1b3cd248c4d0c6c900dae59bc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fddef4c3aade36a03ea32ba7ae8633a.png)
A.3 | B.6 | C.9 | D.4 |
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2 . 若
满足
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ca6ea4ba84c45f0c74d274f1f990b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 若实数
满足等式
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f09e8c6123464f45e2b248d053cf6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bde66645c9abf9e847ea67854c14a6.png)
A.![]() | B.![]() | C.![]() | D.4 |
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4 . 对任意非零实数
,当
充分小时,
.如:
,用这个方法计算
的近似值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc51e97939a8966daa015535a801561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e3ac443cac01e741f166e48cee9ae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09e442f77601cb12c592d2b930fd8a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9317a6b2be7cdf9b7979f008750678e7.png)
A.1.906 | B.1.908 | C.1.917 | D.1.919 |
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解题方法
5 . 已知函数
的图象关于直线
对称,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0cb68a6c21a96a2da0d02c3ebc0b865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d599059e6b2c918ab15ee22611b6962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1655e562d8f047d236d058590e3b9d.png)
A.8 | B.10 | C.12 | D.14 |
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6 . 标准对数视力表(如图)采用的“五分记录法”是我国独创的视力记录方式.标准对数视力表各行“E”字视标约为正方形,每一行“E”的边长都是上一行“E”的边长的
,若视力4.0的视标边长约为10cm,则视力4.9的视标边长约为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/24/2b96d2d5-86cf-4225-9036-7a8c73ef8cc4.png?resizew=102)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd4b94339abc23e0b7df607cffc7428.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/24/2b96d2d5-86cf-4225-9036-7a8c73ef8cc4.png?resizew=102)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-29更新
|
551次组卷
|
2卷引用:辽宁省葫芦岛市2024届高三下学期第一次模拟数学试题
7 . 已知
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3d029dbb129675107315630d5c8b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ae49451ecb6c50998bcb28c3e0da4f.png)
A.2 | B.4 | C.![]() | D.![]() |
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解题方法
8 . 若
为偶函数,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b482cfb8b39f73ead16bebf0b92464b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.1 | D.0或1 |
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9 . 下列各式正确的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c512cd10eedb2a23fc20d54069fbac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e222546bfdea5969316ff618201ac0f7.png)
A.1 | B.3 | C.5 | D.7 |
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