1 . 已知函数
.
(1)若
有三个零点,求实数
的取值范围;
(2)若函数
在
上的最小值为
,求
在
上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d689e7f84652bee628407cafe870e5a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26e3e952cd4fe42045c79e792bf7877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1e12efc515a2a7cf8e7e438c60303a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b1250bce217cfa51a6aa12fac294f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1e12efc515a2a7cf8e7e438c60303a.png)
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解题方法
2 . 已知函数
是定义域上的奇函数,且
.
(1)判断并证明函数
在
上的单调性;
(2)令函数
,若对
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec891bf06e4df7ba161bd6ec24205a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d755fa52c87ccaf34674c18a3f4505f8.png)
(1)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
(2)令函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3745f8df5000ef458bb6cb193734eac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0810990931ead519c27c1278bcaa0ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f254f2d4b70cdcdcd9a7f8ef205813df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解题方法
3 . 已知函数
的图像经过点
.
(1)求函数
的解析式;
(2)判断函数
在
上的单调性并证明;
(3)当
时,
的最小值为3,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0df848bc19edcbe6daf56f36a8b56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8be8de0230f64e618c6a7362f3099d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae61f4eb1e4f52cb48e523d0065bd49.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/387e9eb75d1b04eee0c50b3a38f90c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 若不等式
对于
恒成立,则实数
的取值范围是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6192abce444df59b1f83e94bc916ad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48350c9f896c18a64f27867ca81c9be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 设函数
的定义域为R,满足
,且当
时,
,若对任意
,都有
,则m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cebfc4f151436fcdc84df9edbd789320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78e89bf3b88c415496c232017f33196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58640a13608e28bdba923ce9b0fc2f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63181f6f8fb4904131e9f213f42960a7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 已知
是二次函数,不等式
的解集是
,且
在区间
上的最大值是12.
(1)求
的解析式;
(2)试判断函数
在
上的单调性,并用单调性的定义证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c76c41773aae617db1c0cc04bcf836f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9430ded94aee51af5a5de91fef1d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef1b322a7e2dbe40f17a0f9c61ec4aa.png)
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2024-01-10更新
|
297次组卷
|
4卷引用:重庆市开州区临江中学2023-2024学年高一上学期第二阶段性(12月期中)考试数学试题
重庆市开州区临江中学2023-2024学年高一上学期第二阶段性(12月期中)考试数学试题江西省上饶艺术学校2023-2024学年高一上学期12月月考数学试题(已下线)专题04 函数的性质与应用2-期末复习重难培优与单元检测(人教A版2019)(已下线)3.2.1单调性与最大(小)值(第2课时)
7 . 若函数
在区间
上存在最小值,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6b112eed8da8949279d95f3271bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b1b825dd45b1031f9cd964c575e573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
8 . 已知
的解集是
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a3619ccbcf65312754a970647014e5.png)
A.![]() |
B.不等式![]() ![]() |
C.![]() |
D.当![]() ![]() ![]() ![]() |
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解题方法
9 . 已知函数
是增函数,且
.
(1)若
,
,求
的最小值;
(2)是否存在实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
,使得当
时,函数
的最小值恰为
,而最大值恰为
?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e865711fc88c1871452f1f12076c534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69e5e69fb32ec266ef16839f55e339c5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed36b061ed9341df142319ca9f4fb3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a9a5af7b4a506d670ca5c382050694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ccbdec1dce6366439e5cdf0a137fa5a.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475963eea170ff0bbdaf2f0b706dfc34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe276c0522839b1d37086d92612aa7c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d023b25a30df94a1f5b50281f37fe5fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68f59220c67431fd6515ef2297c9836c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
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解题方法
10 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f1a326456ba10c718efdcf7d525e6a.png)
且
.
(1)若
,判断
的奇偶性和单调性;
(2)若
,求使不等式
恒成立时实数
的取值范围;
(3)若
,
且
在
上的最小值是
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f1a326456ba10c718efdcf7d525e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e54332de095f752d0ee48e58d90517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d8742c296a7949b598114a34c51f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103b6e926aa13321a82b2d57b5844a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56fbec93189276445b83c6df4e9f4866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683a34e929399278f319421486390cd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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