名校
1 . 记实数
,
中的最小值为
,例如
,当
取任意实数时,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c954fef3c9af71c228f22c4f5e3f00de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0aeb68789d2079c6d1e22dc0fd74fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6071ec2ffa6e87cc39fba8c7e95a1c.png)
A.5 | B.4 | C.3 | D.2 |
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名校
2 . 汽车的“燃油效率”是指汽车每消耗1升汽油最多可行驶的公里数,如图描述了A、B两辆汽车在不同速度下的燃油效率情况,根据图中信息,下面4个推断中,合理的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/e4bce3e3-c2e5-4d21-9379-a11093723afe.jpg?resizew=231)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/e4bce3e3-c2e5-4d21-9379-a11093723afe.jpg?resizew=231)
A.消耗1升汽油,A车最多可行驶5千米 |
B.B车以40千米/小时的速度行驶1小时,最少消耗4升汽油 |
C.对于A车而言,行驶速度越快越省油 |
D.某城市机动车最高限速80千米/小时,相同条件下,在该市驾驶B车比驾驶A车更省油 |
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3 . 反比例函数
其中
的部分图象记为曲线
,将
沿y轴翻折,得到曲线
,直线
与
、
一共只有两个公共点,则b的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c5dbbd1a7f9932567099ee67f2443f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd8e09440ba8161cda6b60eb3ca5dfd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bd144e0e96e4236a14523e0729cacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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4 . 如图1所示的图形是一个轴对称图形,且每个角都是直角,长度如图所示,小明按图2所示方法玩拼图游戏,两两相扣,相互间不留空隙,那么小明用9个这样的图形拼出来的图形的总长度是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/ab4a14b2-f8c7-4d2f-8f41-6904555d42eb.png?resizew=314)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/ab4a14b2-f8c7-4d2f-8f41-6904555d42eb.png?resizew=314)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
5 . 已知m为已知常数,且
,如图对称轴为直线
的二次函数
的图象与x轴交于A、B两点,与y轴交于C点,B点的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/9612b1ad-5370-4c8b-a6e6-35e5ff9d401d.png?resizew=190)
(1)求此二次函数的解析式;
(2)在直线
上找一点P,使
的周长最小,并求出点P的坐标;
(3)现定义一个新运算,
,且
,当
时,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f5f4ded389ecab2fe3b3cc44977993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff32d26c8d44f5fb4813a19c1030a9f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/9612b1ad-5370-4c8b-a6e6-35e5ff9d401d.png?resizew=190)
(1)求此二次函数的解析式;
(2)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
(3)现定义一个新运算,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9267ac6f792b25bf6c6ab56b78d7299a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4796d015853d5db00e1f2567da9ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d2343c81fcad8f99284b6c464dd280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd00f42a62756926ff484cabc368ef9c.png)
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解题方法
6 . 如图,在平面四边形
中,
为钝角三角形,
为
与
的交点,若
,且
.
(1)求
的大小;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f873e0038305a4be8e1009466bbd1567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707586d867490f9764cc5615c9fcccd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3233cfb838759281834ea1e96287d1d0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/8ff02d20-5e7a-4a82-b555-c2a0b8fddfe5.png?resizew=168)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36aae82d53f2a35d2f95f467bd5b76cf.png)
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2024-01-03更新
|
1352次组卷
|
6卷引用:湖南省株洲市第一中学2022届高三上学期期末数学测试卷
湖南省株洲市第一中学2022届高三上学期期末数学测试卷重庆市南开中学校2024届高三上学期第五次质量检测数学试题重庆市沙坪坝区南开中学校2024届高三上学期第五次质量检测数学试题广东省梅州市梅县东山中学2024届高三上学期期末数学试题(已下线)考点19 解三角形中的几何问题 --2024届高考数学考点总动员【练】(已下线)考点19 解三角形中的几何问题 --2024届高考数学考点总动员【讲】
名校
解题方法
7 . 已知
的内角
的对边分别为
,
为锐角,
的面积为
,
.
(1)判断
的形状,并说明理由;
(2)如图,若
,
,
为
内一点,且
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e2557d6c0eeb8e56c84db1c4931c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a20335e6e069d4e336be684c418358.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/9494dd0f-34bd-4ced-9fd5-1c53ec8a4aa1.png?resizew=190)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c4b6a72d43121cb2c49f81cacbeef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19fc9f894312e55c87a0d6737080e233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c78f77e5b86ccd537e5f027de9ffe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1553b3dc17566ea973bb62b9daeb6dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
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2023-12-29更新
|
893次组卷
|
3卷引用:湖南省株洲市第一中学2022届高三上学期期中数学试题
名校
解题方法
8 . 当
时,求函数
的最小值(其中t为常数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966d9dd819cba29980da3700422c2497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90d292b1a550a873c9b1b57e128da49.png)
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9 . 按要求计算:
(1)分解因式:
;
(2)已知
,求
的值;
(3)
;
(4)已知
,求
的值.
(1)分解因式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfdb71089c581d4a65a944f18fcfc40.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ccf1328602bd22b09ca55faa023a3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac0218b480ef3eeec90ad04bdffb55f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875e9e322ab55609bf86fbc632175bda.png)
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80236b37de6f299b5ff05d1ff29850c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31f3398b18fc1b3285129af356f48e1.png)
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解题方法
10 . 已知关于x一元二次方程
有两个实根
,
,(1)若
比3大,
比3小,则a的取值范围是______ ;(2)把
写成用含a表达式为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9d53db986fa98cf9391c6d30870338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
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