1 . 在空间直角坐标系中,已知
,则四面体ABCD外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3ec05187fced55230215fb95b46c4d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 如图,已知二面角
的平面角大小为
,垂足分别为
,
,若
,则下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754bbd99327195520a4ca3ce3b9a0577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85090c2a2908e87ab478e0851b0511e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac2abb07333587864b46245ef627ab8.png)
A.直线![]() ![]() ![]() |
B.点![]() ![]() ![]() |
C.平面![]() ![]() ![]() |
D.三棱锥![]() ![]() |
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3 . 已知函数
.
(1)当
时,若直线
与曲线
相切,求
;
(2)若直线
与曲线
恰有两个公共点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db6dc5779e96494ef7f1c8f973ea86b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634cfbfa72c819314962cc08fc29ac15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f590ca2bde213675bffe68ed4017f957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 已知O为坐标原点,经过点
的直线l与抛物线C:
交于A,B(A,B异于点O)两点,且以AB为直径的圆过点O.
(1)求C的方程;
(2)已知M,N,P是C上的三点,若△MNP为正三角形,Q为△MNP的中心,求直线OQ斜率的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
(1)求C的方程;
(2)已知M,N,P是C上的三点,若△MNP为正三角形,Q为△MNP的中心,求直线OQ斜率的最大值.
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解题方法
5 . 若函数
在
上单调递增,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac734219f9130afda1084bd42e52ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知数列
中,
,
,若
,则数列
的前
项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1727c0d3ace2defdfc7ed0ede856171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f47f53e669af3e665f01a3462581e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
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解题方法
7 . 已知数列
的前
项和为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2e1a1a12c7b2b63cb7e576c6c0c31e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd542cdf53d53f7ff2724a463572fdb2.png)
A.190 | B.210 | C.380 | D.420 |
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今日更新
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553次组卷
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4卷引用:陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题
陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题2024届河南省新高考联盟5月联考模拟预测数学试题陕西省安康市高新中学、安康中学高新分校2024届高三下学期5月模拟预测数学(理)试题(已下线)模型6 待定系数法构造数列问题模型(第5章 数列)
名校
解题方法
8 . 已知
分别是椭圆
的左右焦点,如图,抛物线
的焦点为
,且与椭圆在第二象限交于点
,延长
与椭圆交于点
.
(2)设
和
的面积分别为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cafb6a097a0aa621b58c2b54acdc5984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098f0e8865195f8fbabbc9ee1ae556bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cb8d7d091a188a6b311bb4e6c85ee3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104c7ac4a841a2a7bd3e39d2b3fb03ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f857a838fca8a051426984c8bcf5b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4085b194990fc17f8073878b8eca1a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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名校
9 . 如图,在四棱锥
中,
平面
为等边三角形,
,点
为棱
上的动点.
平面
;
(2)当二面角
的大小为
时,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f09ad78d4eccd1a9c9ccd3c4af79c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cad98d0e4a7f999143500c62b07e6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3d2626c477fbb0b0220ccfd1eab9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689c065652544780be8b33ae92cbb6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)当二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8ef5efedfdded5f660a01f3b3f7461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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名校
10 . 若
,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3a0da7554c929ccff1a05dbe696f27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
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