名校
1 . (1)已知
,
,用a、b表示
.
(2)设
,
为方程
的两个根,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9b89520de2880241fc32d465a1aa69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e943f0acc5de35a5bcd1b302f17b80be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0735291332a6f5ee5644633bed2753da.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c4f7ac110287b1fe48085b15ec3a4a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea708fd46f22a6a72343904439f7901d.png)
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名校
2 . (1)计算
.
(2)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486c422e338d1596729fd4ac553a350a.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d08a92e6ed65682f54180581ed304a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7b977a560a23343419f368a0afe5f0b.png)
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3 . 已知
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c02c66aa826a94e88b047064aa4e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f72d9b5bf2d3437c5073c30bd75311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0be44077d42cfffece905b1af13e000.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
4 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d812390d3935af81954bdfd0e1bc8f8.png)
(2)
.
(3)已知
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d812390d3935af81954bdfd0e1bc8f8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20856e9f876a3793bd2a56627a88cc63.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc804b5cd143b99adbe0be1ab06839a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611cc97e8f5ccdae8a681da7f0039c24.png)
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名校
5 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7218aa36f90dc46d1004daa396de2b.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7218aa36f90dc46d1004daa396de2b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b42011f840f47d21f9ae7f9d5834488.png)
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2022高一上·全国·专题练习
6 . 若
均为不等于1的正数,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9128a1dea3b55749570eda6293e2b273.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa48f4e7cb49998e5c08fab69c4c492d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9128a1dea3b55749570eda6293e2b273.png)
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2022高一上·全国·专题练习
7 . 已知
,
,
,
,则下列等式一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf9371c6abe49eeadfcfc914644c6749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3884ee5440c508e58841fd31e3d31764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018e08bfad5acbe6ea374f7bd539c313.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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24-25高一上·全国·课后作业
8 . 填写下面的表格(必要的时候可以使用计算器,结果精确到),并观察数据,概括结论.
对数 | ||||||||
对数值 | ||||||||
对数 | ||||||||
对数值 |
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24-25高一上·全国·课后作业
9 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6b62fd3d957bea57b298adad97fbc8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e261229041a72370201784e8414c35f3.png)
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24-25高一上·全国·课后作业
10 . 计算:
(1)
;
(2)
;
(3)
(
,
,且
,
).
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262af283ababdfbd4c43605acf7d845a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3038e15302e53fd50808c8b89d604514.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d34ffe7d57e109bd2c444b198c6a8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/406185f4ad8bcd99e23adc8d289088ed.png)
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