名校
1 . 设关于
的方程
的两根为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)若
,求
的值;
(2)若方程至少有一根的模为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2914555b73c954e85aa05449d767eee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a39b9354d936ff25d65386d56671d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若方程至少有一根的模为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
解题方法
2 . 已知关于
的方程
,若
是从区间
中任取的一个实数,则这个关于
的方程有实根的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3210a485be94aac7393018f8e9c27e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d88b9e2055fa4d970dcb15ed79de582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-07更新
|
174次组卷
|
2卷引用:陕西省西安市第一中学2024届高三下学期模拟考试数学(文科)试题
2024高三·全国·专题练习
3 . 魏晋时刘徽撰写的《海岛算经》是关测量的数学著作,其中第一题是测海岛的高.如图,点
,
,
在水平线
上,
和
是两个垂直于水平面且等高的测量标杆的高度,称为“表高”,
称为“表距”,
和
都称为“表目距”,
与
的差称为“表目距的差”,则海岛的高
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e5f736b1195fef1d2d300168a795f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e5f736b1195fef1d2d300168a795f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd0cb64c92c6a01d89b11000b896535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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5 . 设
是方程
的一组解,计算:
(1)
;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad0086651e05c716cec1ba31cf09f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821dc5767ac7967687426e4b9c46c918.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b859b72b8127df011d0b3032d2c3ff3e.png)
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名校
6 . 如图,圆内接四边形ABCD中,G为对角线AC、BD的交点,过点D作
交AC于E,且
,F在线段GD上,且
,连接CF.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/4bd1187a-ba53-4a8b-9c6f-9dcef6fc6fb6.png?resizew=170)
(1)求证:
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe7eaf967808dad0a184eeedfa27721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16639200620d92e1a8c228b581dc57c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7953310f793ba2a127772d593b41aff0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/4bd1187a-ba53-4a8b-9c6f-9dcef6fc6fb6.png?resizew=170)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f1b8f2d3052769ed15da4dcdaad203.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb4a99e41e4a30238de487e733e01ef.png)
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名校
7 . 在实数范围内分解因式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b08d4d3c2d9254b057956721f52a30e.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b08d4d3c2d9254b057956721f52a30e.png)
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名校
8 . 若关于x的不等式组
有且仅有四个正整数解,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8462066ad77f3b45fc01504b1412deaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 已知函数
和
的图象相交于
,
两点,当
时,
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c336d739a0d5eab69bf86e090cef12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9863527348481189f3ddd84fa22f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86022205a7487439dd8d0897cd3bf19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
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10 . 如图,半径
弦
于点
,将
沿
对折交
于点
,
的面积为36,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/27/b7744855-1806-4ac2-a9c4-c87734a28a61.png?resizew=117)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4317430d5a2b61d9a2a88b73e7d7ad39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4576673a5899b5cd443ad124ab7408e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/27/b7744855-1806-4ac2-a9c4-c87734a28a61.png?resizew=117)
A.3 | B.![]() | C.4 | D.![]() |
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