解题方法
1 . 已知函数
(
,
)的图象的两条相邻对称轴之间的距离是
,将
图象上所有的点先向右平移
个单位长度,再将所得图象上所有的点的横坐标缩短到原来的
,得到函数
的图象,且
为偶函数.
(1)求
的解析式;
(2)若不等式
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b2794c799d5340ba80ea0594b64f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af87a22a39bd12c4734b0bdf1596b42a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ce6ea3061b38e1ec3ebb2f9e6ff5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651596108cabf813d5e2f394b2c67100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d99fe6bbe981c80b20e91d85b322de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
2 . 下列命题中,正确的有( )
A.若![]() ![]() |
B.若![]() ![]() ![]() |
C.若不等式![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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解题方法
3 . 已知
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b40b1544e62be8b9e9f4dc9f2c0c74.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-28更新
|
155次组卷
|
2卷引用:山西省忻州市2023-2024学年高一上学期期末考试数学试题
名校
解题方法
4 . 后疫情时代,全民健康观念发生很大改变.越来越多人注重通过摄入充足的水果,补充维生素
,提高自身免疫力.郑州某地区适应社会需求,利用当地的地理优势,发展种植某种富含维生素
的珍稀果树.经调研发现:该珍稀果树的单株产量W(单位:千克)与单株用肥量x(单位:千克)满足如下关系:
已知肥料的成本为10元/千克,其他人工投人成本合计
元.若这种水果的市场售价大约为15元/千克,且销路畅通供不应求.记该果树的单株利润为
(单位:元).
(1)求
的函数关系式;
(2)当单株施用肥料为多少千克时,该果树的单株利润最大,并求出最大利润.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646b88ec67d12ea4a85e58f7594342f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e23b020e028ba9aee9547e77eaca05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当单株施用肥料为多少千克时,该果树的单株利润最大,并求出最大利润.
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2024-01-24更新
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304次组卷
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3卷引用:山西省运城市康杰中学2023-2024学年高一下学期开学考试数学试题
解题方法
5 . 已知
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c212d62534a869dfa2be0544f520890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 据国家气象局消息,今年各地均出现了极端高温天气.漫漫暑期,某制冷杯成了畅销商品.该制冷杯根据物体的降温遵循牛顿冷却定律,即如果某液体的初始温度为
(单位:
),那么经过
分钟后,温度
满足
,其中
为室温,
为参数.为模拟观察制冷杯的降温效果,小明把一杯
的茶水放在
的房间,10分钟后茶水降温至
.(参考数据:
)
(1)若欲将这杯茶水继续降温至
,大约还需要多少分钟?(保留整数)
(2)某企业生产制冷杯每月的成本
(单位:万元)由两部分构成:①固定成本(与生产产品的数量无关):20万元;②生产所需材料成本:
万元,
(单位:万套)为每月生产产品的套数.
(i)该企业每月产量
为何值时,平均每万套的成本最低?一万套的最低成本为多少?
(ii)若每月生产
万套产品,每万套售价为:
万元,假设每套产品都能够售出,则该企业应如何制定计划,才能确保该制冷杯每月的利润不低于520万元?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ccd929471d564cc9d2d96266b34d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b077f397f54943d2af4334c7bde3b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b6ed09df3e10d1faa908fb2575948d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212baa7c3eed6574b6edae95538a7765.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849ca1e01ff86bdd86ddd4693da05100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1ea1c0b768f231430b1ae0836a4e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/792f0e34cb59fe2c95c90d6b222b9eac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694613e148bb635b86e6a67bc755cdf3.png)
(1)若欲将这杯茶水继续降温至
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9576b00e0cc6c2fe9e5bcc968d03ddd9.png)
(2)某企业生产制冷杯每月的成本
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28dd92afccd2f416506b4f6e9778339b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(i)该企业每月产量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(ii)若每月生产
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85821770d0b407feb4ae43a75971b24.png)
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2024-01-06更新
|
199次组卷
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2卷引用:山西省部分学校2023-2024学年高一上学期期末数学试题
解题方法
7 . 已知函数
.
(1)若
,且
为奇函数,求
的值;
(2)若
,且
的最小值为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f5025b91d541fef145182667d12c59.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d8d91ec08e861afb35a15e0339d3b0.png)
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名校
解题方法
8 . 已知等比数列
的公比
,且
,
,
是公差为
的等差数列
的前3项.
(1)求
的最小值;
(2)在
取最小值的条件下,设
,数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda6dc559d07bc22c9a0ed1e3a6d01d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc17ca3ab612ea9cf6cfa1eea53cb1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450bfba8c76f5957e945026cbd235298.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450bfba8c76f5957e945026cbd235298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f672010fe85e005afba869d1c50e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8aef2efae0e76650c8463d80f69a14.png)
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2024-01-13更新
|
310次组卷
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2卷引用:山西省大同市2024届高三上学期冬季教学质量检测数学试题
解题方法
9 . 记
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求C;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d8c8dfd3c3e1eeca4ce8a734f6ccb0.png)
(1)求C;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b190349665d3c40f2954d6f1c8926ae.png)
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名校
10 . 已知
,
,且满足
,则
的最小值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c1231b94fec6c8781b7db037e022d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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2024-01-03更新
|
1146次组卷
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3卷引用:山西省运城市康杰中学2023-2024学年高一下学期开学考试数学试题