名校
1 . 定义向量
的“伴随函数”为.
函数.
的“伴随向量”为 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a854b25cf3b9e8e29344c273fbcf0da.png)
(1)在
中,已知
点M 为边AB上的点,且
求出向量
的“伴随函数”
, 并直接写出
的最大值
;
(2)已知向量
函数
求函数
的“伴随向量”
的坐标;
(3)已知
向量
的“伴随函数”分别为
、
, 设
且
的“伴随函数”为
,其最大值为m. 求证: 向量
的充要条件为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b7fac7580249609cae6e1661f46603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a7ac204567c63bb09f9f77eccb4f33f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66655b7a6825b124ce596197bf2aa14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a854b25cf3b9e8e29344c273fbcf0da.png)
(1)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f700c81072d62ea8dab79827fe079ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118155f8e69b4357c10c268e1626e1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c97a2082d6f10ee9f1f9fdfcb40357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dce7cf69b669aed4b8cfc79abf4e302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d48e306c486d1a8d5c94babc242e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5b3d769fd3c7f81cdf25971039e9b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee1494c135e3724ebeb35aa2c0e1bf1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce3b04d127bd23abc88cdd77d091a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99586040e486554f9a561c6a1567c10.png)
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名校
解题方法
2 . 已知函数
.
(1)当
时,求
的最值;
(2)当
时,关于
的不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b28b21dbae9edb360ea96c1edb96e6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691c1fc50ea793ea08748cb75bae70e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e74fc7479e44217bfa27dbd75992b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf755154fdddb396e7ed1a2352f1911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 已知函数
,若
,且
,则
的取值可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a14ad03b7a70a840be1dab4d50c5187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee92881f8c97ca01a2441b0c1960edc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ffba68efa6b59d66744e54b9aeea54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 若
,
,则实数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a17571cf1eb154e6feb1e491409152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.1 | B.0 | C.![]() | D.![]() |
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5 . 已知函数
满足:对
,有
,若存在唯一的
值,使得
在区间
上单调递减,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e221ad8f28f138eac3d428051da7ace7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4a6f10336eaca61cb1a302a76f5757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402fca14f868a8d8c23294ec2c21cf85.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 若函数
的图象关于点
中心对称,且
是
的极值点,
在区间
内有唯一的极大值点,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f719695198a2796db40fa5ac8431f497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3038a4b8c02b12b821fbd0fd69145900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759ab3601d751e0c17bec20feb8f11f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f999add73a95c2eb9b12668da0384f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.8 | B.7 | C.![]() | D.![]() |
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7 . 已知函数
,
,
为
的零点,且
恒成立,
在区间
上有最小值无最大值,则
的取值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a1b51fc74390c262bc0bcaeb20369c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a9f8b43d3ad32c17ccb97202586dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd977e4aaa4634f65c4733e8f6814e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b2b096238bd6eac8cd1ab2c4348fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.7 | B.3 | C.5 | D.11 |
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解题方法
8 . 已知函数
,若
,
,
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4794be662f783b33ee48c6628e1d1628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1813e963c8bf1352c491a5c4c3874fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/341a76642cb554aed4d20e85e432046a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e149f42d544ba0e3d3d79788bdf922fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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名校
9 . 在复平面内的三个点
,
,
对应的复数分别是
,
,
,动点
对应复数
.若实数
,
满足
,且
,则
最大值为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395e44f474af7c750731115aa33d8860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce66396cc53ea6d566a4c16a485883d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734c5f0ab3f244ae2ce1ba7b618cb0ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af329f493fc1677e963d59f60fe9f18c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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