名校
1 . 据气象中心观察和预测:发生于甲地的沙尘暴一直向正南方向移动,其移动速度
与时间
的函数图象图所示,过线段
上一点
作横轴的垂线
,梯形
在直线
左侧部分的面积即为
内沙尘暴所经过的路程
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/23d82557-8a57-4c37-8182-01243181306a.png?resizew=158)
(1) 当
时,求
的值;
(2)将
随
变化的规律用数学关系式表示出来;
(3)若乙城位于甲地正南方向,且距甲地
,试判断这场沙尘暴是否会侵袭到乙城,如果会,在沙尘暴发生后多长时间它将侵袭到乙城?如果不会,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f98da253af7f85324ed3cdb2143ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2701f4514f34671ad959a9d87b57ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b312367cf51225ea3bfbee2103b0c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2701f4514f34671ad959a9d87b57ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d64030d70fbca875eaffef0413b3bf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/23d82557-8a57-4c37-8182-01243181306a.png?resizew=158)
(1) 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d106a430e7748a4d596401820b9abd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若乙城位于甲地正南方向,且距甲地
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871243d6b9888ec16ced83da13637a3c.png)
您最近一年使用:0次
2020-02-24更新
|
340次组卷
|
2卷引用:河南省许昌市禹州市高级中学2023-2024学年高三上学期第一次阶段性考试数学试题
名校
2 . 已知函数
(
且
)是定义在
上的奇函数.
(1)求
的值;
(2)若关于
的方程
在
上有实数根,求
的取值范围;
(3)若对于
,使得
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acebc28d6adbcabc29a55a85203f2e63.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/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3bc9059d5d687b90acb927b19382eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0291d5f3462e4fb265fbb6228925714a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-02-24更新
|
697次组卷
|
2卷引用:河南省许昌市禹州市高级中学2023-2024学年高三上学期第一次阶段性考试数学试题