名校
1 . 已知函数
在
上有且仅有一个零点,则实数
的取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a644d7a17e0c420e8bb5aa0ea1ce4191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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2 . 已知函数
.
(1)若
,求方程
的实数解;
(2)若关于
的方程
在区间
上有且只有一个解,求实数
的范围;
(3)若
,是否存在实数
,使不等式
在区间
上恒成立?若存在,求出
的最小值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04e386c4e4cfb4ef0f622b8a3d7b650.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e792b4df90196152b9ab9ab04abec10c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89aab08e9252668f35b70c1d2a8ee9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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3 . 已知
,
.设p:
,q:
,则p是q的( )条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bdc8d2686a05f12a2ba8a7e3b01be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efdc0e0ca559f0f1af6127545f356fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3af884e11dbf6b215c8bf893e993c3c.png)
A.充分不必要 | B.必要不充分 | C.充要 | D.既不充分又不必要 |
您最近一年使用:0次
2024-06-11更新
|
142次组卷
|
2卷引用:江苏省南京市金陵中学2023-2024学年高二下学期期中考试试卷
名校
4 . 已知函数
.
(1)当
时,求
的单调区间;
(2)当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1996957bc581e5d03c0f733233e9956.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269c11e6f9dbbf1a1efcda572f13ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c8abdaf1a883ca6d2fed14f8341696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 已知函数
的两个极值点为
,
,记
,
.点B,D在
的图象上,满足
,
均垂直于y轴.若四边形
为菱形,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c38b9b27b4688abf19d087dad01f82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45dddee525114c09ee0d1205aed6e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1729a1495cc4e4bafab582f9ad1cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2024-05-07更新
|
1329次组卷
|
3卷引用:江苏省南京市2024届高三第二次模拟考试数学试题
6 . 已知函数
,其中
.
(1)当
时,求曲线
在
处的切线方程;
(2)当
时,若
在区间
上的最小值为
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f8b2df904b69f8e778ecc30c37f630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de19660891d25af49f7a2f64fda5565e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92be82894508d5fd942f8933e736b728.png)
您最近一年使用:0次
2024-05-07更新
|
2591次组卷
|
3卷引用:江苏省南京市2024届高三第二次模拟考试数学试题
解题方法
7 . 设函数
,
,若存在
,使得
成立,则实数
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aff98b36774301820b6f2a0b93154db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab63b020fa6d5118d54de37a91e64ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95805dfb2345de2ceb8fd1072a900a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f559d476497348be66c649d507cb161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
8 . 在正四棱锥
中,
,
,点
满足
,其中
,
,则下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd3eb538f36e6e722e4ce125266b99b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ad040b00b7a307c28dd15829d00a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79296cd4046a71e163a8f3e647a176ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994fe2e2ccff825adfe4567a84e0fd79.png)
A.![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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解题方法
9 . 已知函数
和
的定义域分别是A和B,若函数
和
同时满足下列两个条件:
①对任意的
,都有
或对任意的
,都有
;
②存在
,使得
.
则称
和
互为“依偎函数”,记作
,其中,
叫做“依偎点”.
(1)是否存在
有无数个“依偎点”?若存在,请举例说明;若不存在,请说明理由;
(2)若函数
,
,是否存在k,使得
如果存在,求出k的值;如果不存在,请说明理由;
(3)求证:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
①对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a479511a50da604b2fc7398617db8387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a479511a50da604b2fc7398617db8387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18165b24e85935b2d036eb6ba4aa0125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099adf32792e7334032a80084e0cb584.png)
则称
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0e49c46c9fb222376736229da4e80b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(1)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0e49c46c9fb222376736229da4e80b.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacd6155ac43dbd8aa73d03740c24af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914a49b0d7aedc593a3e87fbab7c31ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44f084386fd408381964398bf8c907a7.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a487acd081800a523a236a1337261e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
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2024-04-23更新
|
321次组卷
|
2卷引用:江苏省南京市南京师范大学附属中学2023-2024学年高二下学期期中考试数学试卷
名校
10 . 关于函数
,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae4722338ce574c5b3bd754d22b7805.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
2024-04-23更新
|
255次组卷
|
2卷引用:江苏省南京市南京师范大学附属中学2023-2024学年高二下学期期中考试数学试卷