名校
解题方法
1 . 已知平面内两点
.
(1)求
的垂直平分线所在直线的直线方程;
(2)过点
作直线
,分别与
轴,
轴的正半轴交于
两点,当
取得最小值时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6060dbac39c2239452fc80c4a5588d62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a99d2c4a23825f62aadcc40822b5eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023-10-12更新
|
257次组卷
|
2卷引用:重庆市西南大学附属中学校2023-2024学年高二上学期10月阶段性检测(一)数学试题
2 . 近日,随着李佳琦直播事件的持续发酵,国货品牌上演花式直播.现有一品牌商也想借这个热度,采取了“量大价优”“广告促销”等方法,提高其下某商品的销售额.市场调查发现,这种商品供不应求,生产出来都能销售完.且此商品的月销售量
(万件)与广告促销费用
(万元)
满足:
,该产品的单价
与销售量之间的关系定为:
万元,已知生产一万件该产品的成本为8万元,设该产品的利润为
万元.
(1)求
与
的函数关系式(利润=销售额-成本-广告促销费用)
(2)当广告促销费用定为多少万元的时候,该产品的利润最大?最大利润为多少万元?.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118c9c0597d2c72126fbc4cc3927108e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153da59d33a0b467e4f4cf7d1a423c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ab3196a9c3c6987f0fa3753325c793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当广告促销费用定为多少万元的时候,该产品的利润最大?最大利润为多少万元?.
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2023-10-09更新
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369次组卷
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3卷引用:重庆市七校2024届高三上学期第一次月考数学试题
名校
解题方法
3 . 已知
,
.
(1)求
的最小值;
(2)求
的最小值;
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d389f7fba8fb3ba8b9bac28ea50a16a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0052e28c156bb77570b1cc7d473e67.png)
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名校
解题方法
4 . (1)已知
,
,求
的取值范围;
(2)若实数a,b,c满足
.试判断
与
的大小并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d9db7dac019e6a5cf09d481a5d28ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3d11728d0e8637d5c354759f8a3c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcb79c362bddb898f8a9d02a5f5d085.png)
(2)若实数a,b,c满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cadb372967afa201bbb32265f2c1a0e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95f91e0c8bcf317b0c5946253821a34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f9659def3e29421f245ea6248ee6d7.png)
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2023-09-29更新
|
244次组卷
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2卷引用:重庆市第十八中学2023-2024学年高一上学期9月月考数学试题
名校
5 . 已知函数
.
(1)若
恒成立,求
的取值范围;
(2)已知
,当
时,若对任意的
,总存在
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d2aca64d352f97ada7ba7a1cfb3403.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd148dda5c2a00db039c91dc69ec90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4801e06090648bd73b1782d8156d4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0496d81c441e6cfa9c26ff7e83746eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a32fef274f43f90a37c57c46f2c670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-09-28更新
|
1597次组卷
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7卷引用:重庆市广益中学校2023-2024学年高一上学期第一次月考数学试题
名校
6 . 已知函数
.
(1)若
,求关于x的方程
的解集;
(2)若函数图象过点
,且
,
,求
的最小值及此时a,b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a191a94ee6ea1b1244ab0c964b6fd47.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d26096323351f5e1508bd1338b768b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8357af9b7c39ce04bb9b69f7aeb40f.png)
(2)若函数图象过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69abe959988e4c8c0739f5857ccfb0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1d065b7c597c8eb18bd48a59f05f1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97514fc2246d12ab4d9896a37c53beb1.png)
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2023-09-27更新
|
157次组卷
|
2卷引用:重庆市铜梁二中2023-2024学年高一上学期9月月考数学试题
名校
7 . 如图所示,将一矩形花坛
扩建成一个更大的矩形花坛
,要求B点在AM上,D点在AN上,且对角线MN过C点,已知
米,
米.
(1)要使矩形
的面积等于50平方米,求DN的长;
(2)当DN的长为多少米时,矩形花坛
的面积最小?并求出最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e6f84f2a5721303019f158d860cd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/29/0eebce02-56a4-4a60-866f-927c4230f6c2.png?resizew=116)
(1)要使矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e6f84f2a5721303019f158d860cd5b.png)
(2)当DN的长为多少米时,矩形花坛
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e6f84f2a5721303019f158d860cd5b.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
,
,且
.
(1)求ab的最小值及此时a,b的值;
(2)求
的最小值及此时a,b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de6fcb38854c3d2dd97be5793c61952.png)
(1)求ab的最小值及此时a,b的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219ba6c8a1b54598db1a78cab28d9d30.png)
您最近一年使用:0次
名校
9 . 已知
,
.
(1)当
,
时,求函数
的值域;
(2)若对任意的
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3664d54b17f5f94aad194268d0b0a775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a1a5f2533b8ea54b7022383f875666.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce2594833690eedb3328fe747feb3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857e07c5fb7f2410d6d267a00889db10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-09-24更新
|
1017次组卷
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5卷引用:重庆南开中学校2023-2024学年高一上学期11月阶段测试数学试题
名校
解题方法
10 . 已知
,
,
分别为
三个内角
,
,
的对边,
,且
,
(1)求
;
(2)若
为
的外接圆,若
、
分别切
于点
、
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d761bb4e66193b07b994f40fb618050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8eb37a4dd75318dcbd836395e575bd.png)
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