名校
解题方法
1 . 已知
,
,给出下列不等式
①
;②
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0bb5f1fcfe43c42f90847ea375f0e5.png)
其中一定成立的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2632ec84ab74a2375a0a8f3bd8f92cc7.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8274957c1cf4ca270a124e17ea547a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100fa43c37aef2e91f5e76e78beeb915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09935031283ec95a10cedf496d769529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0bb5f1fcfe43c42f90847ea375f0e5.png)
其中一定成立的个数为( )
A.1 | B.2 | C.3 | D.4 |
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|
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3卷引用:四川省泸州市2024届高三第三次教学质量诊断性考试(理科)数学试题
2 . 已知函数
.
(1)当
时,求函数
在区间
上的最小值;
(2)讨论函数
的极值点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebbf2ce974635807fe29de594da29c9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f113f0953b99014fdf934fd88811cb.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
3 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)设
是函数
的两个零点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d50d3a1ea316f81f7f4d950e7691f45.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
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4 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d4e6a98830aab7be357e74bc2d972a.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13c949972e69a07b408e49127b36061.png)
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名校
5 . 已知函数
既有极大值,也有极小值,则下列关系式中一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba7b719d35907c684f9888ad91e68b2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-04-19更新
|
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|
2卷引用:四川省绵阳市高中2024届高三第三次诊断性考试理科数学试卷
6 . 已知函数
.
(1)当
时,求函数
的最大值
(2)若函数
有两个不同零点,求实数
的取值范围
(3)设
,数列
的前
项和为
.证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22402c92b6520102d426be0426dd2682.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448e12651d90029beeeedfa4dba2a519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ac599022bc660692040ae16fc548f2.png)
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2024高三下·全国·专题练习
解题方法
7 . 已知函数
,其中自然常数
.
(1)若
是函数
的极值点,求实数
的值;
(2)当
时,设函数
的两个极值点为
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6fdea84652114845906dddc01884b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594663e98b797cdc4efbd098cc15854f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d937a038e503ea0d8d9aabfdc98bab5f.png)
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名校
8 . 已知函数
.
(1)当
时,求
的单调区间;
(2)当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591e97a7af6d3162ea29538dbc6780f7.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/11f6c09f1b6afbd4b7106ae8e982bfa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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|
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4卷引用:四川省成都市石室中学2024届高三下学期高考适应性考试(二)理科数学试卷
解题方法
9 . 已知函数
.
(1)若
在区间
存在极值,求
的取值范围;
(2)若
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7054dbcd9ad1998688f13392344cc43.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d4e6da5ef81e8653eacfbb748dc127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-04-17更新
|
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|
4卷引用:四川省遂宁市2024届高三第二次诊断性考试数学(理)试题
名校
解题方法
10 . 已知
,若存在
,使得
成立,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab569bb2ce49f69984f0576d09f9556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a733c45def518ffdb84b1a3c8bc508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6700237e42df2f85392e4244ba0302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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|
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