1 . 设
为正实数,若各项均为正数的数列
满足:
,都有
.则称数列
为
数列.
(1)判断以下两个数列是否为
数列:
数列
:3,5,8,13,21;
数列
:
,
,5,10.
(2)若数列
满足
且
,是否存在正实数
,使得数列
是
数列?若存在,求
的取值范围;若不存在,说明理由.
(3)若各项均为整数的数列
是
数列,且
的前
项和
为150,求
的最小值及取得最小值时
的所有可能取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde2576b383ae3c851529435805b3adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428dccc2ca7913400fd6644fb78de601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee7ed704a954d0414be6c3148bd566d.png)
(1)判断以下两个数列是否为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bea0dd7e474bcd04db2544427ba0488.png)
数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5faff5d08e2976e15f0cec988ced37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d765033fa3e470b4b4bae90a28514587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585e3a2fda3f7f3b5b484c9113a3c59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee7ed704a954d0414be6c3148bd566d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)若各项均为整数的数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d8f894492a8126f5f133dec4cd68833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1071ac8657ef1c4e1ea7e0530196298d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc94ddf603ec2e0af31695f6654b2d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47bfab3010d4aa7e17cd1b54e26c157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ae1522a36768618f7ddaf74abbb7e.png)
您最近一年使用:0次
2023-01-05更新
|
601次组卷
|
3卷引用:北京市东直门中学2023-2024学年高一上学期期中考试数学试题
名校
解题方法
2 . 已知函数
在
上有意义,且对任意
满足
.
(1)求
的值,判断
的奇偶性并证明你的结论;
(2)若
时,
,判断
在
的单调性,并说明理由.
(3)在(2)的条件下,请在以下两个问题中任选一个 作答:(如果两问都做,按①得分计入总分)
①若
,请问是否存在实数
,使得
恒成立,若存在,给出实数
的一个取值;若不存在,请说明理由.
②记
表示
两数中的较大值,若对于任意
,
,求实数
的取值范围?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c275d203295b989c129101d82e74ae01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f97718f1472e11502eaa775b58bd05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608fd0dfd30079f4337ef571571eb287.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afeede1e920a57feb40fc0cd66b961a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7baa4f3372e6a0aa38056e0de3b0fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6000b174147cec2de26041837aec1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c275d203295b989c129101d82e74ae01.png)
(3)在(2)的条件下,请在以下两个问题中
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad3411b2f63b59dafb6fccdacddd1fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32f78e3f288a433f8ba3661e551af4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabe40ebe23d91aa1447b9896b300f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287376282d8c04d267ec6add486853f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd851ca08ce2b6224e9d5e9952cff60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-12-12更新
|
917次组卷
|
2卷引用:北京师范大学附属中学2021-2022学年高一上学期期中考试数学试题
21-22高三上·北京·期中
名校
3 . 已知函数
.
(1)求
的单调递增区间;
(2)若
在区间
上的最大值是
,求
的取值范围;
(3)令
,如果曲线
与直线
相邻两个交点间的距离为
,求
的所有可能取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f734c7bab5a46c252054c0c7c58c1c38.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb37d173605f006df4c51ba63b1841d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2665cce8924f0d96c37e25ffdc982d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d74c0570f3ef4fff3e0ba34204f8d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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名校
解题方法
4 . 已知二次函数
的图象经过点
,在从条件①、条件②中选择一个作为已知,求:
(1)
的解析式;
(2)证明:
在区间
上单调递增;
(3)若函数
(其中
)的图象与直线
有两个不同交点,求m的取值范围.(写出详细解答过程)
①点
,点
在函数
的图象上;
②不等式
的解集为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1803dc3c76fd2b51696647aa18602412.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97ab84192e12bb292bc9fbd0b29fbee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48befa5d90fafd8bfdb6c90fd241ebfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ca651bfc89628a3b05c6e87ce5d6f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
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名校
解题方法
5 . 已知________.
(1)解不等式
;
(2)若
的解集为R,求实数b的取值范围.
从下面条件①、条件②中任选一个,补充在上面的横线上作为已知,并作答.
①
的最小值是a;
②不等式
的解集是
.
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de9db115080b62ceb32d39f890b6d8f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c93a5df4808c014f0b4aeffefb3d05e.png)
从下面条件①、条件②中任选一个,补充在上面的横线上作为已知,并作答.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/222d0ba81e913f1289c10e4783ce35db.png)
②不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9a91332440ae5eb3495cbc4cbd64b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b05849c5aa6777c65d0035f08ad96e.png)
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