名校
解题方法
1 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若
时,
的最小值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b23fabe4b8c9810a3e043dfc27ffc7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a81e971f501d78f5560c0c3d42f0f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f1a722a2595fdc71462654b764ee49d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa16b780156e18f12baa2b8ee0f9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
2 . 已知a为实数,函数
,
.
(1)设
,
,若函数
的最大值等于2,求a的值;
(2)若对任意
,都存在
,使得
,求a的取值范围;
(3)设
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1c079afd1b058adc67a50f48f3d466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6076f2c305797168a666280436eb6e8f.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605705b3da667e82dd7787b4741b261e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77156221148913fb706a2d57d9b9100c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327e81d90543aa594968112a73bfa2ad.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b3a5b4f2b7279a7aa94f8ec12b3f43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3b1d05315ce6c73c0ad0500845a409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29cf4f9640637c4ec7804da532b6a819.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b200636f87441fc3e8788675391f39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
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名校
3 . 已知向量
,
,函数
,
.
(1)若
,求
的值;
(2)用
表示
,若
时,
的最小值为
,求实数
的值;
(3)设
为正整数,函数
在区间
上恰有2024个零点,请求出所有满足条件的
的值及相应
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24de0eae5db745b9e0f51963973e961d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae2a23e9e7ae7db55c3e114f2eba19f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e95435f474caf8511be2679d1b8476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b87f4ef298bdeebf59a0d850aff72c.png)
(2)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93af88a7628c71d642d3a6df067c15f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46bb700769d578c7ed2b6a650400b926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c07c496500d66cbd74e1070e1c7c1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
4 . 已知定义在
上的函数
满足
.
(1)求
;
(2)若函数
,
,是否存在实数
使得
的最小值为
?若存在,求出实数
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e276006dc5b6f941be16860b8e3c0e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b201cf357856ffe5feffeaea3f763047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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名校
解题方法
5 . 如图,半圆的直径
,
为圆心,
,
为半圆上的点.
的位置,使
的周长最大,并说明理由;
(2)已知
,设
,当
为何值时,四边形
的周长最大?并求出最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15416b74b2ecbcfa38cf34a9ffff730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d2a7224c0bfb1e460408991c568e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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名校
解题方法
6 . 已知函数
在
上的最大值为4,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2f80962e55a4d6da60361355a8eeb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a12a30935c79ae769818043a496f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024高三·全国·专题练习
解题方法
7 . 设
(
且
)是定义域为
的奇函数.
(1)求实数
的值;
(2)若
,试求不等式
的解集;
(3)若
,且
在
上的最小值为11,求实数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec55e2299b1886acb0c3ec1a6aec31e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f54ecfa11026d97c8d315e55e0d34a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab304c4f2c84d4694f2ace1abd373be.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7b076e4232733022f9300133b93766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1369b294904d84e03bcd56a8d7bf70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d45793b96fcc2aa90c8555b1c5157af.png)
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2024高三·全国·专题练习
解题方法
8 . 已知
为奇函数.
(1)求实数a的值;
(2)记集合
,
,试判断实数
与集合
的关系;
(3)是否存在不相等的正实数
,使得当
时,函数f(x)的值域为
?若存在,则求出m,n的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d00e92292264eebaf47ed18f4c9eb4.png)
(1)求实数a的值;
(2)记集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ef1669a1a2277a44173bf3a188060f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44d39ae75ec14124b8e0e7d7f556f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)是否存在不相等的正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/931374d6a870ef15324c5c0416de1410.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bbfdaa18a1d13e21b8727b23fa091b.png)
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9 . 已知关于x的二次函数
(a,m为常数,且
).
(1)若该二次函数图象的顶点
,求a,m的值;
(2)设该函数的图象与x轴交于A、B两点,与y轴交于点N,Q为函数图象的顶点.当
的面积与
的面积相等时,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6650abb83cc9b487cacc1d7c75d166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)若该二次函数图象的顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc44797d05f315cb4ae3967ec32262a.png)
(2)设该函数的图象与x轴交于A、B两点,与y轴交于点N,Q为函数图象的顶点.当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7ad41b36674fd6e90176ee24cdefbb.png)
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名校
解题方法
10 . 如图,设Ox,Oy是平面内相交成
角的两条数轴,
,
分别是x轴与y轴方向同向的单位向量,若向量
,则把有序数对
叫做向量在斜坐标系xOy中的坐标,记为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4224bf1cbcd51f4cbdce93d981d65c5a.png)
,求
;
(2)在斜坐标系xOy中的坐标,已知
,
,
,求
的最大值及此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5253a9a71037d60059b60237824193b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9aa1d34d66a6876aa0566c8fc8b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4224bf1cbcd51f4cbdce93d981d65c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087fa245e52bb7e2bf59f79fe45741ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6e7fa9384531ef24312fda723007c1.png)
(2)在斜坐标系xOy中的坐标,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29530412521857bc075252387a4a1d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88cd18ab032cef491c7dbed4183e4747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df79382a109b3fa455b94bfc694f5ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d28aadc13222c88cec6fb8fe7bf199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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