1 . 已知函数
,则正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f30645702170b2c2e544af273fd859.png)
A.![]() |
B.![]() |
C.函数![]() |
D.当![]() ![]() ![]() |
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2024高三·全国·专题练习
解题方法
2 . 函数
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc6c59b69adc016521351ec2245b4dd.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
3 . 已知函数
在R上有定义,对任意实数
和任意实数x,都有
.
(1)证明
;
(2)证明
,其中
和
均为常数;
(3)当(2)中的
时,设
,讨论
在
内的单调性,并求最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66233cd56d44ffd5a63699d0e8115dcb.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c829c4a4e8d5fd052165fd18ce571e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
(3)当(2)中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c607604dcfd044f1b87387085b92c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
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4 . 已知函数
.
(1)若
时,
恒成立,求实数
的取值范围;
(2)将函数
的图象的横坐标缩小为原来的
,纵坐标不变,再将其向右平移
个单位,得到函数
的图象.若
,函数
有且仅有4个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c309ced402b72999aff2066b4bfed35.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0a5133b8460df6c46da0e44051e2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5139cf1b63dfa0a0164dd9cb40f18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d9703ec5eee8074ba7fbe0e899b336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2024高三·全国·专题练习
解题方法
5 . 如果奇函数
在
上是增函数且最小值5,那么
在区间
上是 ( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd2eedab1868828530de228aee6a714a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3fc7b2b4e793c71931cca8650f7a780.png)
A.增函数且最小值为 ![]() | B.减函数且最小值为 ![]() |
C.增函数且最大值为 ![]() | D.减函数且最大值为 ![]() |
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名校
解题方法
6 . 已知命题
,若
为假命题,则
的取值范围是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31a4379ff3de52dfa55652107842ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-05-11更新
|
637次组卷
|
3卷引用:陕西省安康市高新中学、安中分校2024届高三下学期第四次考试文科数学试题
2024高三·全国·专题练习
解题方法
7 . 已知函数
在
上单调递减,且对任意的
,总有
,则实数t的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c389e87b719677a7cc7543e87159ea8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e7c8604b36bd497c9b9a52d6074f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e670d4cc27f53a1e24d3b6def12736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc027e6f14fbb73dd000fe9fd217902.png)
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2024·全国·模拟预测
解题方法
8 . 已知数列
的前
项和为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7a9511c3d1b6d41d17df1559919880.png)
.
(1)求
.
(2)若
,则当
取最小值时,求
的值.
![](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/8d7a9511c3d1b6d41d17df1559919880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12764b1ecab25c66da2003bc4df97477.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ebf05ca12f9da810b2b10e066ececf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03aae904fc5e398b7e626de1375b1c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2024·全国·模拟预测
9 . 已知
,且
在区间
恒成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ae572a9d205c09710587c4fb857b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1074e5765256f1c5224287fe634ca91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
10 . 已知函数
,且
.
(1)求
的值及曲线
在点
处的切线方程;
(2)求函数
在区间
上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c56eb056e2289654ae4944f38117225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf6d8799983510bb2f6332b8a54805e9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
您最近一年使用:0次
2024-04-19更新
|
638次组卷
|
3卷引用:黑龙江省牡丹江市第三高级中学2024届高三下学期高考前适应性演练数学试卷