解题方法
1 . 下列各式正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 立德中学篮球队10名男篮运动员身高数据如下:(单位:
)
175 178 182 182 182 184 186 189 192 195
(1)直接写出这组数据的众数和中位数;
(2)如果从上表里身高超过
的运动员中随机抽取两名运动员,求这两名运动员身高都超过
的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
175 178 182 182 182 184 186 189 192 195
(1)直接写出这组数据的众数和中位数;
(2)如果从上表里身高超过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5a9a2c8cc07fc8b22cd2dbba72ae02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb16799cd79c2a19802c5207f1ec21b.png)
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3 . 若
,则下列各式一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 已知
,且
为第二象限角,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 .
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d93d67d76d20c950e2e1ca0a66d48546.png)
A.0 | B.1 | C.3 | D.5 |
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解题方法
6 . 已知函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cad145a3d104f73049bf2e1cd69b9c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92682840e2a230de346562b2032f8adb.png)
A.0 | B.1 | C.2 | D.4 |
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7 . 如图,在正方体
中,与
平行的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9741288caa97c2a6dcac6f2e9c045f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知点
,若点
是线段
中点,则点
的坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a4ee834f5cb4bf6b3b187fddae7fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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9 . 如图,某人在河南岸的点A处,想要测量河北岸的点
与点A的距离,现取南岸一点
,得
,
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/2e36cdde-3150-4640-9b01-191d005619fe.png?resizew=158)
![](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/cb2cf0e95fdf1fd8a5b01d3dfd905e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15947f9f2cd8a7aa37728f44f8fbc114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3002335e287111602d47264d68323c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/2e36cdde-3150-4640-9b01-191d005619fe.png?resizew=158)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 《九章算术》中记载,四个面都为直角三角形的四面体称之为鳖臑.现有一个“鳖臑”,
底面
,
,且
,
,则该四面体的体积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/dc541f62-b84b-4d36-9a92-238f3ba3c6e3.png?resizew=127)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491c3a4f72b84ebadd28b90711435adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209acf15985d1ea1ad86fc4a37e38c0b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/dc541f62-b84b-4d36-9a92-238f3ba3c6e3.png?resizew=127)
A.1 | B.2 | C.4 | D.8 |
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