1 . 已知函数
,用列表法表示如下:
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7eba061fc1a296cbb161e70e697749.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7eba061fc1a296cbb161e70e697749.png)
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2 . 命题“
”的否定是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff0f6f9118cc3da54ba36608861b66f.png)
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2024-01-24更新
|
191次组卷
|
2卷引用:广东省深圳市深圳科学高中2023-2024学年高二下学期开学考试数学试题
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3 . 一个乒乓球从
高的高度自由落下,每次落下后反弹的高度都是原来高度的
,在第3次着地时,乒乓球经过的总路程为_____________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0bb863aba7910e3ba8452a2c29b347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
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2024-01-24更新
|
219次组卷
|
2卷引用:广东省中山市迪茵公学2023-2024学年高二下学期开学考试数学试题
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解题方法
4 . 设随机变量
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912181c347106c0fdfec033ac43f1365.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5308def6afa297c067ed70285fe637d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912181c347106c0fdfec033ac43f1365.png)
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5 . 如图,在网格中,每个小正方形的边长均为1,每个小正方形的顶点称为格点,点A、B、C三点都在格点上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b351337bbbf0e7c10ac201302acf90.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b351337bbbf0e7c10ac201302acf90.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/a335fb64-89cd-4a4e-8019-201f8e0081cb.png?resizew=134)
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6 . x,
,3,7,10,平均数为5,中位数为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
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解题方法
7 . 函数可用
表示,例如
,当
时,
.若函数
.则
的值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbe4dcf7bab15691ce70be6bba133dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279ac68cfe3c0aaa87dd7fd5a1274c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1431215c772d24b91cb580045ae2dc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109dde9fdf7b26d48a8eee68fc9e7d46.png)
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8 . (1)不等式
的解集为______ .
(2)不等式
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7402ab8b675978ec98307c380693e6cd.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2074466a733d7a117903b9216f3971.png)
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9 . 已知
,
,则分式
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3ee5b28be97a545a5791278fd50012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08eae9a89e348b6c80922e9146f44a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485599783e0c2d034abc435e04fb9a9e.png)
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10 . 直角三角形
中,
是斜边,
,高
把
分为
和
两段,
,那么
的面积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30912a21aa3d8412f8e020e13ce4cd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca14f6100d829f197a5dac5197bbe0b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c58b22b4b6c05eb03c3f8c2a599a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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